Oh, and before I forget.  I would make the viser a seperate color for rendering assistance.  The reason is, if anyone wanted to alter the armor color only, they'd have to edit the visor as well, which would be bad.  Cause, I know for a fact, most people who wanted this armor, want the charactaristic gold reflective face plate.  (I know, cause I am one of them.)  Also, the back of the chest plate is hollow.  It should be solid in the way that it molds around the chest and back.  Right now, its just flat, and rather unconvincing.  Same for the inside of the front as well.  It should be a solid object, rather than what it is now.  

Don't get me wrong, its a great start, and much better than I could ever do.  (I work with starships, not armor or peoples.) 

And definatly work on the crotch of the hip armor.  The part that goes between the legs.  Cause, frankly, it looks painful right now.

In order to go forward, one must often times look to the past.