Looking neat!
Can't quite pin-point what's bothering me, but something about the torso and the shoulders just doesn't look quite right..
With the drapery on the arm only thing that I'd suggest to add are some creases forming from under the shoulders, the armpit I guess. Also on the rear arm the creases that are created between the upper and lower limb you would expect to be more dramatic (like with the shoulders area) and smaller than yours (the feel it gives off right now in the rear arm is kinda like plastic rather than cloth).
The area with the fur on the neck I feel should be lighter and the area under it too shoulder be lighter (it gives off the feel that the fur is way on top of the clothing under).
The foot looks like it's going inwards, which I doubt was the intention, so I moved it outwards almost completely (same with the knee pad, made it so that it faces more to the left and also faces slightly more downwards because the knee is bent).
Some other really minor stuff:
The end of the gun, where the hand holds it; it looks like it could slip out of his hand in any moment, so perhaps elongating it slightly to the palm of the hand would work.
The two button-like things on the fur, the one on the left looks a little too short (it should also be moved a tad to the back).
Think part of the chest should be seen on the rear end.
The back on the front should be protruding a bit more.
Anyway, keep up the good work!
