UX Designs for Mobile App using Sketch

Hi, We need a Graphic/UX Designer to create seven mobile app images/pages in Sketch, with assets and font utilizing our current app settings. App is in iOS. Designer must sign NDA. Full details will be provided after project is assigned and NDA is signed. Screens: 1. In App Landing Page with comments - video area emphasized taking up approximately 80% of page 2. Landing Page with Question and Answers section increased to take up 75% of screen, when question and answer section is displayed, comment section will be disabled, other buttons will be disabled, and video size will reduce to 25% of screen 3. Members can view bonus/reward options - organization rewards/bonus options, sponsored partner rewards (New iPad, Starbucks Gift Car, Nike customized shoes, etc.) 4. Viewing, Views Screen - simple, like Instagram. Member clicks on views, can see other members viewing, or who have viewed. 5. Suggestion Screen - members can fill out an overlay form launching the landing screen before or after the video has completed. 6. End of video/question/answer session, members will see a circular icon of the member who presented the video, their name under the icon, how many points the member just earned for the video, and "click here to view <name> profile 7. Admin Screen