i like the face, maybe a little too big for the body. if you could incorporate what Bens0n has done you may be in the running. like your face alot better. like his shirt, pants and shoes better. and his "background" design better. remember i live in the desert so your background should incorporate that.
the guy is too goofy looking. i don't like the shirt, hat or pants. I love the face, it may be too big though. I don't like the outline around the text. I don't how the guy is kicking his let in the air. I don't like both thumbs in the air.