Redesigning the Message Counter App

With the developer release of Android L in June and the introduction of Material design, I've been thinking of redesigning the Message Counter app. Taking into account various principles mentioned and how they can be applied to this app, a few initial design thoughts are shared here.

Variations on the color scheme are given below.

So first impressions and suggestions will be very much helpful.

You can find the current Message Counter app here: https://play.google.com/store/apps/details?id=com.ae.apps.messagecounter