Redesign iOS app screenshots for App Store

I need 3 new design screenshots for my iOS app, Vocal Interpreter ([login to view URL]). At the end, I will need 9 PNGs: - 3 for iPhone Retina 3.5'' (640x960) - 3 for iPhone 5 Retina 4'' (640x1136) - 3 for iPad (1536?×?2048) The design can be the same for the 3 devices however, since the aspect ratios are different, some adjustments may be necessary. I will provide raw screenshots from the 3 devices. I like the image of the physical device on the screenshot (see current screens) but also a dedicated "introductory" screen is ok (like the first here: [login to view URL]). As you can see on current screens, I would like also some text on the them. The text has to highlight the main features of the app (but can be different from the text on currents screens). At the end I will need also PSD files with layers intact. If you submit an offer, please provide at least one previous work. If you want, I can send a raw screenshot for a test. For any questions, please ask. I will consider only bids < 80$ Thank you for your time.