I love watching and practicing mixed martial arts so I might be too critical. For me personally, as a player, the most important part of this type of game would be the animations, but only because it's a fight game. I like the cloth animations and the hair animations but as far as the attack animations go, they're more than okay but I would love to see them feel more fluid. I'm not an animator and its better than anything I could probably do myself but it just seems a little too "stiff" at the moment. If it was a finished game, I'd probably still enjoy it, but a more fluidic feel to the animations would make it even better.
If you asked me how to make it more fluid, I'd have to say, "I don't know", but maybe look at your animations in slow motion and look for things like do the hips lead the attacks or do the arms and legs lead the attacks. Most attacks should start at the waist. If the body and limbs move together, in sync, it could cause an unnatural feel. I think it's probably okay as it is, but if you're wanting to refine the animations even more, I'd recommend watching similar attacks by real people in slow motion, paying special attention to what parts of the body move first.
Other than that, I think what you've done so far is really nice. Good job!