This... is for The Emperor!
Sorry, the fa/tg/uy in me can't help it sometimes.
Anyway, this was another great learning experience. A modular character (armored/mecha) is really good for learning to use layers and just constructing an image piecemeal. This is the first one I've felt (mostly) like I had an actual plan.
I used multiple images to make some changes to certain parts, here's that:
http://i.imgur.com/teF8K3t.png