iOS Flat UI psds

An expansion of an experiment I tried to see how much you could make an interface which feels native to iOS but without using a single gradient. So here's my attempt at making a completely flat (but not flat) UI.
Attached are the psds so feel free to have a play around with them and improve it.

The original thoughts about it all here - https://medium.com/thoughts-and-words/8cac4ef1984e