Is it easy to change the perspective in your 3d studio maxx (or whatever software)?
it still looks a little bit like a gear-wheel on the edge and the coin seems too thick.
but my thumbs up.

look on the edge here:
http://upload.wikimedia.org/wikipedia/commons/thumb/7/76/2005_AEPlat_Proof_Obv.png/771px-2005_AEPlat_Proof_Obv.png