I like the piece in general but I think the color scheme can be a little cleaner. The analogous background (pink clouds) and the color of her (the girl in green) energy seem awfully close and the panels can seem a little crouded as a result. Perhaps a different color for the clouds?
All in all its a dynamic piece and the action is fairly clear. I like the posing of the characters and the play between the panels, as if they were getting rocked by the action itself.