I'm a 2D artist so I can't help with 3d-related stuff.
Your charceter is nice, you seem to have some good ideas. Unfortunatly I see the overall design as "flat" or probably too unified. The silouhette is weak and there isn't much going on execept for the wings. You should add some varation, try to exagerate some shapes a little bit more than others.
Hope it helps