Good. Practice makes perfect. It looks good but the "feel" is off. When he hits the window glass pane its like he skips a frame without the force of momentum ever slowing down for a millisecond. There's no crack, and if there is, its not visible which looses its effect only because there's no suppression or slow down from the force of his momentum hitting the window.. When he hits the vehicle its too stiff. Its like its not even affected before he plops on the ground motionless (which is also too quick). He looks like a useless rag doll pawn. Study depth of "atmosphere" and the "feel" of momentum and movement, not just art and what you've already learned from what you've seen. Take from Stanley Lau the artgerm and study life for yourself so you can develop your own way like the person from Avatar did.