Overdithered a bit, but I do lik the overall feeling of the piece. Maybe you should add some more texture to the ground, right now it's just kind of a dark mass.

Cheers all

@Stitchy: There are two light sources, one from the top-right which is the sun (although it isn't shown in the pic), and the second is the gun's flash as it's being fired. Which bit of the lighting looks wrong? Also, the left leg (from his perspective) is behind him, while his left is in front as he's walking along. Actually, yeah, I see the problems with the light now, because the gun will be pointed forward a bit, so there should be a bit more light on the front of the body. I'll get that tweaked.