Just made this. Things I know of: Clouds over his head suck. Yes, that is Times New Roman just to express that I dont care about the text. CnC appreciated.
It's kinda cool. I don't like the yellow blob. The effects could also be fleshed out a bit, but thats up to you.
Effects on his hand look good, but the bg is really dull. Spruce it up. Other than that it's nice. ^_^