FitStar Concept

So I've been using FitStar Personal Trainer for quite some time. I really love using it but I believe it might benefit from a few improvements. So I've redesigned a few screens. Mainly focused on refining the experience, this concept also maximise user’s motivation and commitment.

Are there FitStar users here?

You can see all the shots in full size, with annotations explaining the changes here: http://cl.ly/image/3C0R162y0c0g
Feedback is always appreciated!