diff --git a/demo-shell-ng2/app/components/activiti/activiti-demo.component.css b/demo-shell-ng2/app/components/activiti/activiti-demo.component.css
index 9cfc4f8ef6..15e60cbd0a 100644
--- a/demo-shell-ng2/app/components/activiti/activiti-demo.component.css
+++ b/demo-shell-ng2/app/components/activiti/activiti-demo.component.css
@@ -21,7 +21,7 @@
     margin-bottom: 5px;
 }
 
-.adf-no-form-container {    
+.adf-no-form-container {
     text-align: center;
     font-weight: 600;
     font-size: 18px;
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/amount/amount.widget.html b/ng2-components/ng2-activiti-form/src/components/widgets/amount/amount.widget.html
index 68656ab4fd..031188f3b4 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/amount/amount.widget.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/amount/amount.widget.html
@@ -14,5 +14,6 @@
                 placeholder="{{field.placeholder}}">
     </md-input-container>
     <error-widget [error]="field.validationSummary" ></error-widget>
+    <error-widget *ngIf="isInvalidFieldRequired()" required="{{ 'FORM.FIELD.REQUIRED' | translate }}"></error-widget>
 </div>
 
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/container/container.widget.scss b/ng2-components/ng2-activiti-form/src/components/widgets/container/container.widget.scss
index 14bd6c150b..9dd1bc46de 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/container/container.widget.scss
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/container/container.widget.scss
@@ -56,7 +56,7 @@
         }
 
         .mat-input-placeholder {
-            top: 2.5em !important;
+            top: 2.2em !important;
         }
 
         .mat-focused {
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/core/group-user.model.ts b/ng2-components/ng2-activiti-form/src/components/widgets/core/group-user.model.ts
index 5dd668f5c7..b9f4cf9238 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/core/group-user.model.ts
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/core/group-user.model.ts
@@ -24,6 +24,7 @@ export class GroupUserModel {
     firstName: string;
     id: string;
     lastName: string;
+    userImageUrl: string;
 
     constructor(json?: any) {
         if (json) {
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/date/date.widget.html b/ng2-components/ng2-activiti-form/src/components/widgets/date/date.widget.html
index 59a273bd75..b028442d30 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/date/date.widget.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/date/date.widget.html
@@ -14,6 +14,7 @@
         <button class="adf-date-widget-button" mdSuffix [mdDatepickerToggle]="datePicker"  [disabled]="field.readOnly"></button>
     </md-input-container>
     <error-widget [error]="field.validationSummary" ></error-widget>
+    <error-widget *ngIf="isInvalidFieldRequired()" required="{{ 'FORM.FIELD.REQUIRED' | translate }}"></error-widget>
     <md-datepicker #datePicker [touchUi]="true" [startAt]="startAt" (selectedChanged)="onDateChanged($event)"></md-datepicker>
 </div>
 
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/dropdown/dropdown.widget.html b/ng2-components/ng2-activiti-form/src/components/widgets/dropdown/dropdown.widget.html
index 19aed4e37b..70b1cc190a 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/dropdown/dropdown.widget.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/dropdown/dropdown.widget.html
@@ -11,4 +11,5 @@
                    [id]="opt.id">{{opt.name}}</md-option>
     </md-select>
     <error-widget [error]="field.validationSummary" ></error-widget>
+    <error-widget class="adf-dropdown-required-message" *ngIf="isInvalidFieldRequired()" required="{{ 'FORM.FIELD.REQUIRED' | translate }}"></error-widget>
 </div>
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/dropdown/dropdown.widget.scss b/ng2-components/ng2-activiti-form/src/components/widgets/dropdown/dropdown.widget.scss
index 73202bcb93..a6b74ca2e0 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/dropdown/dropdown.widget.scss
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/dropdown/dropdown.widget.scss
@@ -11,4 +11,8 @@
         width: 100%;
     }
 
+    &-dropdown-required-message .adf-error-text-container{
+        margin-top: -2px !important;
+    }
+
 }
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/dynamic-table/dynamic-table.widget.html b/ng2-components/ng2-activiti-form/src/components/widgets/dynamic-table/dynamic-table.widget.html
index 5f3da680bc..57a7bf02f6 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/dynamic-table/dynamic-table.widget.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/dynamic-table/dynamic-table.widget.html
@@ -62,4 +62,5 @@
         (cancel)="onCancelChanges()">
      </row-editor>
     <error-widget [error]="field.validationSummary" ></error-widget>
+    <error-widget class="adf-dropdown-required-message" *ngIf="isInvalidFieldRequired()" required="{{ 'FORM.FIELD.REQUIRED' | translate }}"></error-widget>
 </div>
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/error/error.component.html b/ng2-components/ng2-activiti-form/src/components/widgets/error/error.component.html
index 5022255d8f..abfc26a064 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/error/error.component.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/error/error.component.html
@@ -3,4 +3,7 @@
         <div class="adf-error-text">{{error}}</div>
         <i class="material-icons adf-error-icon">warning</i>
     </div>
+    <div *ngIf="required" [@transitionMessages]="_subscriptAnimationState">
+            <div class="adf-error-text">{{required}}</div>
+    </div>
 </div>
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/error/error.component.scss b/ng2-components/ng2-activiti-form/src/components/widgets/error/error.component.scss
index de1bd2e830..3874a65ef4 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/error/error.component.scss
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/error/error.component.scss
@@ -1,3 +1,5 @@
 .adf-error-text-container {
-    margin-top: 0 !important;
+    margin-top: -16px !important;
+    position: inherit;
+    width: 100%;
 }
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/error/error.component.ts b/ng2-components/ng2-activiti-form/src/components/widgets/error/error.component.ts
index fa7b5c3c27..b8450d22e5 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/error/error.component.ts
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/error/error.component.ts
@@ -18,7 +18,7 @@
 /* tslint:disable:component-selector  */
 
 import { animate, state, style, transition, trigger } from '@angular/animations';
-import { AfterViewInit, Component, Input, ViewEncapsulation } from '@angular/core';
+import { AfterViewInit, Component, Input, OnChanges, SimpleChanges, ViewEncapsulation } from '@angular/core';
 import { FormService } from './../../../services/form.service';
 import { baseHost , WidgetComponent } from './../widget.component';
 
@@ -38,11 +38,14 @@ import { baseHost , WidgetComponent } from './../widget.component';
     host: baseHost,
     encapsulation: ViewEncapsulation.None
 })
-export class ErrorWidgetComponent extends WidgetComponent implements AfterViewInit {
+export class ErrorWidgetComponent extends WidgetComponent implements AfterViewInit, OnChanges {
 
     @Input()
     error: string;
 
+    @Input()
+    required: string;
+
     _subscriptAnimationState: string = '';
 
     constructor(public formService: FormService) {
@@ -53,4 +56,11 @@ export class ErrorWidgetComponent extends WidgetComponent implements AfterViewIn
         this._subscriptAnimationState = 'enter';
     }
 
+    ngOnChanges(changes: SimpleChanges) {
+        if (changes['required']) {
+            this.required = changes.required.currentValue;
+            this._subscriptAnimationState = 'enter';
+        }
+    }
+
 }
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/functional-group/functional-group.widget.html b/ng2-components/ng2-activiti-form/src/components/widgets/functional-group/functional-group.widget.html
index c87b29fb90..08974468a0 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/functional-group/functional-group.widget.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/functional-group/functional-group.widget.html
@@ -1,6 +1,6 @@
 <div class="adf-group-widget {{field.className}}"
      [class.is-dirty]="value"
-     [class.adf-invalid]="!field.isValid" [class.adf-readonly]="field.readOnly" id="typehead-div" *ngIf="field.isVisible">
+     [class.adf-invalid]="!field.isValid" [class.adf-readonly]="field.readOnly" id="functional-group-div" *ngIf="field.isVisible">
     <md-input-container>
         <label class="adf-label" [attr.for]="field.id">{{field.name}}<span *ngIf="isRequired()">*</span></label>
         <input mdInput
@@ -15,11 +15,12 @@
                placeholder="{{field.placeholder}}">
     </md-input-container>
     <error-widget [error]="field.validationSummary"></error-widget>
+    <error-widget class="adf-dropdown-required-message" *ngIf="isInvalidFieldRequired()" required="{{ 'FORM.FIELD.REQUIRED' | translate }}"></error-widget>
 </div>
-<div class="adf-typeahead-autocomplete mat-elevation-z2" *ngIf="popupVisible && users.length > 0">
+<div class="adf-group-autocomplete mat-elevation-z2" *ngIf="popupVisible">
     <md-option *ngFor="let item of groups"
                [id]="field.id +'-'+item.id"
                (click)="onItemClick(item, $event)">
-        <span>{{item.name}}}</span>
+        <span>{{item.name}}</span>
     </md-option>
 </div>
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/functional-group/functional-group.widget.scss b/ng2-components/ng2-activiti-form/src/components/widgets/functional-group/functional-group.widget.scss
index ff944b5c45..f292ae036f 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/functional-group/functional-group.widget.scss
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/functional-group/functional-group.widget.scss
@@ -9,13 +9,14 @@
 
     &-group-autocomplete {
         background-color: #fff;
-        position:absolute;
+        position: inherit;
         max-height: 200px;
         overflow-y: auto;
         z-index: 5;
+        width: 100%;
         color: #555;
         margin: -15px 0 0 0;
-        > ul {
+        > md-option {
             list-style-type: none;
             position: static;
             height: auto;
@@ -25,7 +26,7 @@
             margin: 0;
             box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.2), 0 1px 5px 0 rgba(0, 0, 0, 0.12);
             border-radius: 2px;
-            > li {
+            > span {
                 opacity: 1;
             }
         }
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/multiline-text/multiline-text.widget.html b/ng2-components/ng2-activiti-form/src/components/widgets/multiline-text/multiline-text.widget.html
index de000556c3..c6ef1c38df 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/multiline-text/multiline-text.widget.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/multiline-text/multiline-text.widget.html
@@ -6,6 +6,7 @@
                   md-autosize
                   type="text"
                   rows="3"
+                  [maxlength]="field.maxLength"
                   [id]="field.id"
                   [required]="isRequired()"
                   [(ngModel)]="field.value"
@@ -14,6 +15,10 @@
                   placeholder="{{field.placeholder}}">
         </textarea>
     </md-input-container>
+    <div *ngIf="field.maxLength > 0" class="adf-multiline-word-counter">
+        <span>{{field?.value?.length || 0}}/{{field.maxLength}}</span>
+    </div>
     <error-widget [error]="field.validationSummary"></error-widget>
+    <error-widget class="adf-dropdown-required-message" *ngIf="isInvalidFieldRequired()" required="{{ 'FORM.FIELD.REQUIRED' | translate }}"></error-widget>
 </div>
 
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/multiline-text/multiline-text.widget.scss b/ng2-components/ng2-activiti-form/src/components/widgets/multiline-text/multiline-text.widget.scss
index 07427925b4..4e266a0c45 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/multiline-text/multiline-text.widget.scss
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/multiline-text/multiline-text.widget.scss
@@ -7,4 +7,21 @@
         width: 100%;
     }
 
+    &-multiline-word-counter {
+        float: right;
+        margin-top: -20px !important;
+        min-height: 24px;
+        min-width: 1px;
+        font-size: 12px;
+        line-height: 14px;
+        overflow: hidden;
+        transition: all .3s cubic-bezier(.55,0,.55,.2);
+        opacity: 1;
+        margin-top: 0;
+        padding-top: 5px;
+        text-align: right;
+        padding-right: 2px;
+        padding-left: 0;
+    }
+
 }
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/number/number.widget.html b/ng2-components/ng2-activiti-form/src/components/widgets/number/number.widget.html
index 1d1cbe0c3e..5903ee83a9 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/number/number.widget.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/number/number.widget.html
@@ -15,4 +15,5 @@
                placeholder="{{field.placeholder}}">
     </md-input-container>
     <error-widget [error]="field.validationSummary" ></error-widget>
+    <error-widget class="adf-dropdown-required-message" *ngIf="isInvalidFieldRequired()" required="{{ 'FORM.FIELD.REQUIRED' | translate }}"></error-widget>
 </div>
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/people/people.widget.html b/ng2-components/ng2-activiti-form/src/components/widgets/people/people.widget.html
index ca59553257..7aeb79f552 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/people/people.widget.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/people/people.widget.html
@@ -1,13 +1,13 @@
 <div class="adf-people-widget {{field.className}}"
      [class.is-dirty]="value"
-     [class.adf-invalid]="!field.isValid" [class.adf-readonly]="field.readOnly" id="typehead-div" *ngIf="field.isVisible">
+     [class.adf-invalid]="!field.isValid" [class.adf-readonly]="field.readOnly" id="people-widget-content" *ngIf="field.isVisible">
     <md-input-container>
         <label class="adf-label" [attr.for]="field.id">{{field.name}}<span *ngIf="isRequired()">*</span></label>
         <input mdInput
                class="adf-input"
                type="text"
                [id]="field.id"
-               [(ngModel)]="field.value"
+               [(ngModel)]="value"
                (ngModelChange)="checkVisibility(field)"
                (keyup)="onKeyUp($event)"
                (blur)="onBlur()"
@@ -15,11 +15,22 @@
                placeholder="{{field.placeholder}}">
     </md-input-container>
     <error-widget [error]="field.validationSummary"></error-widget>
+    <error-widget class="adf-dropdown-required-message" *ngIf="isInvalidFieldRequired()" required="{{ 'FORM.FIELD.REQUIRED' | translate }}"></error-widget>
 </div>
-<div class="adf-typeahead-autocomplete mat-elevation-z2" *ngIf="popupVisible && users.length > 0">
-    <md-option *ngFor="let item of users"
-               [id]="field.id +'-'+item.id"
-               (click)="onItemClick(item, $event)">
-        <span>{{getDisplayName(item)}}</span>
+<div class="adf-people-autocomplete mat-elevation-z2" *ngIf="popupVisible && users.length > 0">
+    <md-option *ngFor="let user of users"
+               [id]="field.id +'-'+user.id"
+               (click)="onItemClick(user, $event)">
+        <div class="adf-people-widget-row">
+            <div *ngIf="!user.userImage" class="adf-people-widget-pic">
+                {{user.firstName[0]}} {{user.lastName[0]}}
+            </div>
+            <div *ngIf="user.userImage" class="adf-people-widget-image-row">
+                <img class="adf-people-widget-image"
+                    [src]="user.userImage"
+                    (error)="onErrorImageLoad(user)"/>
+            </div>
+            <span>{{getDisplayName(user)}}</span>
+        </div>
     </md-option>
 </div>
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/people/people.widget.scss b/ng2-components/ng2-activiti-form/src/components/widgets/people/people.widget.scss
index 379d3f3e45..d18e6ed7e2 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/people/people.widget.scss
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/people/people.widget.scss
@@ -9,25 +9,58 @@
 
     &-people-autocomplete {
         background-color: #fff;
-        position:absolute;
+        position:inherit;
         max-height: 200px;
+        width: 100%;
         overflow-y: auto;
         z-index: 5;
         color: #555;
         margin: -15px 0 0 0;
-        > ul {
+        box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.2), 0 1px 5px 0 rgba(0, 0, 0, 0.12);
+        > md-option {
             list-style-type: none;
             position: static;
             height: auto;
             width: auto;
             min-width: 124px;
-            padding: 8px 0;
+            padding: 8px 0 0 20px;
             margin: 0;
-            box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.2), 0 1px 5px 0 rgba(0, 0, 0, 0.12);
             border-radius: 2px;
-            > li {
+            > span {
                 opacity: 1;
             }
         }
     }
+
+    &-people-widget-pic {
+        background: #ff9800;
+        display: inline-block;
+        width: 30px;
+        padding: 0px 9px;
+        border-radius: 100px;
+        color: #fff;
+        text-align: center;
+        font-weight: bolder;
+        font-size: 18px;
+        font-family: Muli;
+        text-transform: uppercase;
+        vertical-align: middle;
+    }
+
+    &-people-widget-row {
+        padding: 5px 5px;
+    }
+
+    &-people-widget-image {
+        border-radius: 100px;
+        width: 50px;
+        height: 50px;
+        vertical-align: middle;
+        display: inline-block;
+        padding: 0px 0px;
+    }
+
+    &-people-widget-image-row {
+        display: inline-block;
+    }
 }
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/people/people.widget.ts b/ng2-components/ng2-activiti-form/src/components/widgets/people/people.widget.ts
index c3e1290cba..69995a824f 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/people/people.widget.ts
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/people/people.widget.ts
@@ -85,12 +85,18 @@ export class PeopleWidgetComponent extends WidgetComponent implements OnInit {
         }, 200);
     }
 
+    onErrorImageLoad(user) {
+        if (user.userImage) {
+            user.userImage = null;
+        }
+    }
+
     flushValue() {
         this.popupVisible = false;
 
         let option = this.users.find(item => {
             let fullName = this.getDisplayName(item).toLocaleLowerCase();
-            return fullName === this.value.toLocaleLowerCase();
+            return (this.value && fullName === this.value.toLocaleLowerCase());
         });
 
         if (option) {
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/radio-buttons/radio-buttons.widget.html b/ng2-components/ng2-activiti-form/src/components/widgets/radio-buttons/radio-buttons.widget.html
index 41bd247429..28cfad62aa 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/radio-buttons/radio-buttons.widget.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/radio-buttons/radio-buttons.widget.html
@@ -17,4 +17,7 @@
         </md-radio-group>
     </div>
     <error-widget [error]="field.validationSummary" ></error-widget>
+    <error-widget class="adf-dropdown-required-message" *ngIf="isInvalidFieldRequired()" required="{{ 'FORM.FIELD.REQUIRED' | translate }}"></error-widget>
 </div>
+
+
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/text/text.widget.html b/ng2-components/ng2-activiti-form/src/components/widgets/text/text.widget.html
index 7cfe89c3e5..428f035477 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/text/text.widget.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/text/text.widget.html
@@ -15,4 +15,5 @@
                placeholder="{{field.placeholder}}">
     </md-input-container>
     <error-widget [error]="field.validationSummary"></error-widget>
+    <error-widget class="adf-dropdown-required-message" *ngIf="isInvalidFieldRequired()" required="{{ 'FORM.FIELD.REQUIRED' | translate }}"></error-widget>
 </div>
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/typeahead/typeahead.widget.html b/ng2-components/ng2-activiti-form/src/components/widgets/typeahead/typeahead.widget.html
index dcda4fff84..74f852ef29 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/typeahead/typeahead.widget.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/typeahead/typeahead.widget.html
@@ -1,23 +1,26 @@
-<div class="adf-typeahead-widget {{field.className}}"
-     [class.is-dirty]="value"
-     [class.adf-invalid]="!field.isValid" [class.adf-readonly]="field.readOnly" id="typehead-div" *ngIf="field.isVisible">
-    <md-input-container>
-        <label class="adf-label" [attr.for]="field.id">{{field.name}}</label>
-        <input mdInput
-           class="adf-input"
-           type="text"
-           [id]="field.id"
-           [(ngModel)]="value"
-           (keyup)="onKeyUp($event)"
-           (blur)="onBlur()"
-           [disabled]="field.readOnly"
-           placeholder="{{field.placeholder}}">
-    </md-input-container>
-    <error-widget [error]="field.validationSummary" ></error-widget>
-</div>
-<div class="adf-typeahead-autocomplete mat-elevation-z2" *ngIf="options.length > 0 && popupVisible">
-        <md-option *ngFor="let item of options"
-            (click)="onItemClick(item, $event)">
+<div class="adf-typeahead-widget-container">
+    <div class="adf-typeahead-widget {{field.className}}"
+        [class.is-dirty]="value"
+        [class.adf-invalid]="!field.isValid"
+        [class.adf-readonly]="field.readOnly"
+        id="typehead-div" *ngIf="field.isVisible">
+        <md-input-container>
+            <label class="adf-label" [attr.for]="field.id">{{field.name}}</label>
+            <input mdInput class="adf-input"
+                   type="text"
+                   [id]="field.id"
+                   [(ngModel)]="value"
+                   (keyup)="onKeyUp($event)"
+                   (blur)="onBlur()"
+                   [disabled]="field.readOnly"
+                   placeholder="{{field.placeholder}}">
+        </md-input-container>
+        <error-widget [error]="field.validationSummary"></error-widget>
+        <error-widget class="adf-dropdown-required-message" *ngIf="isInvalidFieldRequired()" required="{{ 'FORM.FIELD.REQUIRED' | translate }}"></error-widget>
+    </div>
+    <div class="adf-typeahead-autocomplete mat-elevation-z2" *ngIf="options.length > 0 && popupVisible">
+        <md-option *ngFor="let item of options" (click)="onItemClick(item, $event)">
             <span>{{item.name}}</span>
         </md-option>
+    </div>
 </div>
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/typeahead/typeahead.widget.scss b/ng2-components/ng2-activiti-form/src/components/widgets/typeahead/typeahead.widget.scss
index f18b5a554c..d9880652eb 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/typeahead/typeahead.widget.scss
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/typeahead/typeahead.widget.scss
@@ -3,6 +3,11 @@
 
 .adf {
 
+    &-typeahead-widget-container {
+        position: relative;
+        display: block;
+    }
+
     &-typeahead-widget {
         width: 100%;
     }
@@ -11,11 +16,13 @@
         background-color: #fff;
         position:absolute;
         max-height: 200px;
+        width: 100%;
         overflow-y: auto;
         z-index: 5;
         color: #555;
-        margin: -15px 0 0 0;
-        > ul {
+        margin: -10px 0 0 0;
+        box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.2), 0 1px 5px 0 rgba(0, 0, 0, 0.12);
+        > md-option {
             list-style-type: none;
             position: static;
             height: auto;
@@ -23,10 +30,10 @@
             min-width: 124px;
             padding: 8px 0;
             margin: 0;
-            box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.2), 0 1px 5px 0 rgba(0, 0, 0, 0.12);
             border-radius: 2px;
-            > li {
+            > span {
                 opacity: 1;
+                padding-left: 23px;
             }
         }
     }
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/upload/upload.widget.html b/ng2-components/ng2-activiti-form/src/components/widgets/upload/upload.widget.html
index 60862ea1f7..ac3be76ab1 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/upload/upload.widget.html
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/upload/upload.widget.html
@@ -28,5 +28,5 @@
                (change)="onFileChanged($event)">
     </div>
     <error-widget [error]="field.validationSummary" ></error-widget>
-
+    <error-widget class="adf-dropdown-required-message" *ngIf="isInvalidFieldRequired()" required="{{ 'FORM.FIELD.REQUIRED' | translate }}"></error-widget>
 </div>
diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/widget.component.ts b/ng2-components/ng2-activiti-form/src/components/widgets/widget.component.ts
index 8ebdc22997..35437db014 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/widget.component.ts
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/widget.component.ts
@@ -83,6 +83,10 @@ export class WidgetComponent implements AfterViewInit {
             this.field.value !== undefined;
     }
 
+    isInvalidFieldRequired() {
+        return !this.field.isValid && !this.field.validationSummary && this.isRequired();
+    }
+
     ngAfterViewInit() {
         this.fieldChanged.emit(this.field);
     }
diff --git a/ng2-components/ng2-activiti-form/src/i18n/en.json b/ng2-components/ng2-activiti-form/src/i18n/en.json
index c05017b260..d738949669 100644
--- a/ng2-components/ng2-activiti-form/src/i18n/en.json
+++ b/ng2-components/ng2-activiti-form/src/i18n/en.json
@@ -5,6 +5,9 @@
     },
     "PREVIEW": {
       "IMAGE_NOT_AVAILABLE": "The preview image is not available."
+    },
+    "FIELD": {
+        "REQUIRED" : "*Required"
     }
   }
 }
diff --git a/ng2-components/ng2-activiti-form/src/services/form.service.spec.ts b/ng2-components/ng2-activiti-form/src/services/form.service.spec.ts
index 0ce38ad345..b287292964 100644
--- a/ng2-components/ng2-activiti-form/src/services/form.service.spec.ts
+++ b/ng2-components/ng2-activiti-form/src/services/form.service.spec.ts
@@ -477,6 +477,7 @@ describe('Form service', () => {
         });
 
         it('should return list of people', (done) => {
+            spyOn(service, 'getUserProfileImageApi').and.returnValue('/app/rest/users/2002/picture');
             let fakeFilter: string = 'whatever';
 
             service.getWorkflowUsers(fakeFilter).subscribe(result => {
diff --git a/ng2-components/ng2-activiti-form/src/services/form.service.ts b/ng2-components/ng2-activiti-form/src/services/form.service.ts
index 06b61297c2..593d7bc8f7 100644
--- a/ng2-components/ng2-activiti-form/src/services/form.service.ts
+++ b/ng2-components/ng2-activiti-form/src/services/form.service.ts
@@ -352,13 +352,22 @@ export class FormService {
         return Observable.fromPromise(this.taskApi.getRestFieldValuesColumn(taskId, field, column)).catch(err => this.handleError(err));
     }
 
+    private getUserProfileImageApi(userId: string): string {
+        return this.apiService.getInstance().activiti.userApi.getUserProfilePictureUrl(userId);
+    }
+
     getWorkflowUsers(filter: string, groupId?: string): Observable<GroupUserModel[]> {
         let option: any = {filter: filter};
         if (groupId) {
             option.groupId = groupId;
         }
         return Observable.fromPromise(this.usersWorkflowApi.getUsers(option))
-            .map((response: any) => <GroupUserModel[]> response.data || [])
+            .switchMap((response: any) => <GroupUserModel[]> response.data || [])
+            .map((user: any) => {
+                    user.userImage = this.getUserProfileImageApi(user.id);
+                    return Observable.of(user);
+                })
+            .combineAll()
             .catch(err => this.handleError(err));
     }
 
diff --git a/ng2-components/ng2-activiti-tasklist/src/components/comment-list.component.ts b/ng2-components/ng2-activiti-tasklist/src/components/comment-list.component.ts
index 738a9ce746..5da9f588c3 100644
--- a/ng2-components/ng2-activiti-tasklist/src/components/comment-list.component.ts
+++ b/ng2-components/ng2-activiti-tasklist/src/components/comment-list.component.ts
@@ -79,7 +79,9 @@ export class CommentListComponent {
     }
 
     onErrorImageLoad(user: User) {
-        user.userImage = null;
+        if (user.userImage) {
+            user.userImage = null;
+        }
     }
 
 }
diff --git a/ng2-components/ng2-activiti-tasklist/src/components/people-search.component.ts b/ng2-components/ng2-activiti-tasklist/src/components/people-search.component.ts
index c1c8a59f80..e61ad6a8d9 100644
--- a/ng2-components/ng2-activiti-tasklist/src/components/people-search.component.ts
+++ b/ng2-components/ng2-activiti-tasklist/src/components/people-search.component.ts
@@ -106,6 +106,8 @@ export class PeopleSearchComponent implements OnInit {
     }
 
     onErrorImageLoad(user: User) {
-        user.userImage = null;
+        if (user.userImage) {
+            user.userImage = null;
+        }
     }
 }
diff --git a/ng2-components/ng2-activiti-tasklist/src/components/people.component.ts b/ng2-components/ng2-activiti-tasklist/src/components/people.component.ts
index e8e8e8b805..4f97bfb243 100644
--- a/ng2-components/ng2-activiti-tasklist/src/components/people.component.ts
+++ b/ng2-components/ng2-activiti-tasklist/src/components/people.component.ts
@@ -156,6 +156,8 @@ export class PeopleComponent implements OnInit, AfterViewInit {
     }
 
     onErrorImageLoad(user: User) {
-        user.userImage = null;
+        if (user.userImage) {
+            user.userImage = null;
+        }
     }
 }