The sharpness just sorta distracts the eye away from everything else. It's hard to see any detail of any other parts of the sig, or any other layers beneath. Because the sharpness is a bit uniform across the sig, it flattens the sig to the eye. The lack of depth then couples with the small size your stock and since it's off to the side, the left side feels like an empty bit of sharpness. So, yeah. The sharpness kills it for me. =/
I like the effects in the second and third one. sometimes your effects are too bright and messy but good blending