Thanks for the crits guys. I did and edit based on your advice:
Unfortunately I did the bulk of the work before seeing Helm's awesome edit (which purts my pallette to shame
again ),
so there are probably still color issues... I tried to AA it to the background, though, and took a chunk out of the big guy's head (You were right, Dhaos, I think it adds some character).
I changed some other stuff too, like the shape of the right (our right) foot, and some of the folds/highlights... and probably some other stuff that I've forgotten.
Hooray!
EDIT:
looking at it, I think the bite looks... off. It wouldn't If I could draw, but... hmm...
EDIT (again):
Imade and edit of my edit based on Helm's edit... edited...
Down to 8 colours
*Edited due to hosting problems*