So this is what Deadmau5 does when he's not touring!
To be honest, I can see nothing wrong with the replay at all; you achieved the desired result and used your joints at the right time to pack some punch into your, er, punch. Stuf to work on? Maybe try making them more fancy, like pulling your fist back further before launching yourself at Uke and bringing your knees into the equation for even more power (aim for a core?)