oh man now i see it. i was thinking for a minute you used Clown Face from the body bags two pack but savage dragon makes sense now. I could swear the heads from a juggernaut. either way it looks fantastic, great job all around man super super nice.
Contrast couldn't hurt. The actual focus is somewhat blurry. I'd try taking a lamp or something for light and using a piece of white paper (or hell... even a stretched out white shirt or umbrella) to bounce the light onto him. That ought to help light him without over exposing him. The better the lighting the sharper the focus oughta be. I'll see if Steph has any advice.