AWESOME FANART YO!
the only thing I could mention would be the gun....I know it's going towards me but it took me awhile for me to notice the weapon and the arm coming out....so I would say to try and see if there's a way to make it more noticeable
And maybe put in some bounce light or something on the butt to separate the color from the hair more....since it's very similar it's hard for me to notice the curve....sorry not good at critiques....i'm good at paintovers I believe, but I don't think people want there pages clutters with other art....maybe if we made a post on cubebrush where we could just post art and allow people to do paintovers to see how they would do certain things or ......hmm....lemme see if I could make one...but i don't think anyone would join though lqtms