Bahahahaha!!! That looks great! The theme is pretty hilarious. The only things I see weird are the gun and the hand behind the gun. The gun is too small for the picture, and you can't really distinguish that the hand behind it actually is a gun. It just looks like a block of meat holding it. Another thing - the facial features. The eyes in particular are pretty small, making it look a bit weird. The shading however, is magnificent. You seem to do well in that area, so kudos to you.
It looks great.