We are looking for an experienced Mobile Graphic Designer & UI Expert

Every app needs a beautiful, memorable app icon that attracts people in the Google Play and stands out on their Home screen.
* Create beautiful\eye-catching and memorable icon
You should follow Google or Apple design guidelines
* Create uniq Feature graphic and Promo graphic for Google Play
You should follow Google or Apple design guidelines (and you should be very familiar with it)
* Create four "Help screens"
Those screens, with a little text, will give a user brief descripotion of what App do
* "Blank screens" in app itself.
Those screens will fill out blank pages, till user will add some content there.
- Favorites radio stations screen
- Favorites podcasts screen
- Downloaded podcasts screen
- Recently listen Radio Stations
* User profile picture (1080x440)
You should follow the same style as "Blank screens" and "Help screens"
* Handle few screenshots of App, add beautul text and fram
You should create it carefully and creative

General requirements:
- All graphic should strictly follow best practice of Material Design from Google
- Designer should provide all graphic sources *.psd
- All graphic should be in *.png and *.jpeg
- And of course you should be Mobile Graphic Expert with proven experience ...