What is it with kids and rolling over stuff. My 4 yo does this with absolutely everything he can. "Hey mom, watch this .. ." dive, roll, giggle. good capture. My only nitpick would be that the brightness of the background really makes the subject look too dark.
Cute kid and action pose. You're exactly on the edge of a shadow, if the subject were 1 foot to your right, it would get illumination from the sun. More face and focus on face would be better, focus appears to be on pants.