"Lissen, ya twerp. You owe Big Lou 2,000 plus da points. Now eitha you hand ova some cash or I break ya f***in' leg." ...ohhhh crap.
But seriously, it ain't bad but you might want to spend some time sketching hats. Get some images of fedoras, homborg hats, etc. & move your pencil/stylus/whatever. Look for hats that were in style during the 1920's to 30's if you really want to make it authentic. Also if you make the suit a little bit tighter, it would show his latent power & violence more effectively.