I'm liking it, some nice depth. I've never been one for certain reds and blues going together. These colours I wouldn't usually like. However, the way that you've executed it, I simply cannot complain.

One problem, is that the stock has the light background, and so to me. The lighting just seems to stay off. Aswell as the lighting being off slightly as it is. I'm somewhat getting confused, as to which area, is your light source. And even when I did notice the actual light source, I would have to say, try moving it right a bit, at an angle.

I'm not overly sure of the clipping mask, on his left arm. (Our right)
Nice tag though dude, and kiu!