I agree with Rene Dragus, the MK1 Stand looks goofy... any change is welcome, please try to make him look more ninja or whatever, his stand looks like a hack (I mean the original sprites).
If you could at least fix that hand, it looks like he is playing cowboys: "Bang Bang, I killed you with my finger!"
Also your animation still looks better than the original, the movement of the whole body looks more genuine as it is right now.