Dropbox Material Design App Concept

Dropbox is a very good service, however the current design of their android app leaves a lot wish for. It doesn't have the old Holo style and it has nothing to do with Material Design. Therefore a while back I've decided to create a concept for a brand new Material Design UI for Dropbox. 

The original concept can be seen here and the updated version here.

The concept visible below has only had a few minor changes from the second one.