Not bad
The clothes and hat could've been flapping while he was flying (like, maybe a 3 frame loop). Backgrounds could use better detail. You could've put yellow/white painted lines on the road to make the movement and the fact that it's a road more clear. There could maybe be some clouds in the sky.
Everything could use some shading, but make sure you know what you're doing before adding shading, 'cause sometimes people ruin their drawings with poor shading and they'd be better off without it.
Pretty decent overall, but it could use more effort.