Any suggestions on how to make the image look more finished?
if you wouldnt mind, could you post some of your older stuff...
His right hand's fingers look rather short. I think your fingers naturally go diagonal when you put your hand in that position. His eyes don't seem focused -- like he's not looking down the sights of the gun. Adding a bit of a squint could solve this problem and also give him more of a badass feel. While I like the colors a lot, I think since you're using so few more contrast would look good and give more depth.
hitler edit.