It was pretty good.
The fire was kinda boring, though. It didn't seem like fire, so much as like...energy.
When the water moves back down to the ground in that big wave, It didn't feel quite like it had enough force. Maybe make the wave wider and taller around the outsides?
The earth thing was cool. It made me lol.
The air was cool also, but maybe give the attacks a little more...POW. The air seemed kinda flimsy for the amount of force in the body's physical movement.