newvie: Nice striking, sweet booms. With explosive dm's you should emulate explosive power, don't just let your hand bounce away after the dm's are done. Keep going through the joints you just crushed, make it seem like you can destroy a brickwall behind them.
Also, noticed at frame 620-600 was a twitch, try to minimize them, they usually destroy replays.
Keep up the good work, you've got slaps down, that's for sure, I'd like to see you try some different kind of punches.
Hope it helps.
Edit: And yeah, don't make arms flail around like a pair of planks! ;)