I like the shading and work on the right
I'm not sure if it's on purpose, but the left(or the right side from the figures POV) side is visually distorted. The hand is accepted as a gesture, but the shoe is noticebly different. it kinda looks like hes taking a step but the placement of his feet make it look like a full on fall. The shirt could use a lil more tone to contrast with his skin i suppose.
Beyond that, the face and everything else is pretty cool and rather funny xD