Phone icon set
Here's a revolutionary illustration never before made called 'hand holding a phone' and also as a bonus I think there's a thumbs up in the mix
vivid line theme for Android on Behance
Incoming Call Icon Motion [PSD Included] by Nikola Popovic
These are all beautifully designed. I really like the feel of the theme and each app fits well with the next.
App Icon Design - Concept Research