Holy crap zxcman! That's some badassery right there! Saved to my inspiration folder :) This thread just won't stop impressing me every time I look in here!
I got the same impression as MrNinjutsu. It looks like he was idle, then becomes alert - where the body animation stops and the head suddenly raises. Very cool, just perhaps not idle :D
Why do you guys don't stop to be so awesome? I feel ashamed to post anything here this way :) There goes one more up on this, and a paintover to guide me on next steps.