Spatter is overdone on the shoulder. Lower the opacity and maybe set it on lighten if it isn't already or do some erasing. Other than that its solid.
The colors you used look nice but the effects you made dont look so good to be honest, this one can be a lot better with just something simply done not overboard with effects make a v2
V2 Got rid of the effect on his shoulder, not sure if thats what you meant.P.S.- Pistol tryout out for GFX Team