There is an unacceptable lack of fan art appreciation of Sigma, the main antagonist from the Megaman X series. Gotta fix that!
Of all of his many, many, many bodies this one's my favorite. You face this at the tail end of Megaman X6.
[ EDIT 1/13/13]
I sat down and put a few more hours into it fixing up a ton of minor linework problems and a few major ones as well as adding just a couple more details. There's still work I could do, so maybe later.