Hmm, too short, work more.
Good: Colors (grey, brown, sexy, always a good combination), lines (smooth), sound (for the most part, I didn't get to hear alot because the toon was too short), frame consistency (no over loads)...
Bad: Clouds (some go one way while the others go another I figured out that the cloud was supposed to be following the boy, but I think it would have looked better if you just left the boy without a cloud, also, clouds arn't solid. Him landing on a solid cloud is a little weird.) The text at the begining was too long (I was starting to get bored), the character running was not fluent enough, try removing some of the extra frames.
I just want to know, is there gonna be a finished version of this, or is this it? Because I'd love to see the rest of this down the road.