The first thing that struck me with this video apart from the horrible laughing in the dark title, was the orange colour. It looks like you didn't do a white balance before shooting. This could have also been corrected in post.
Another thing I thought it needed was some sound of the action. The music track was ok but I do think the video would have been better with some grunts and thuds of the action.
Now a point about aesthetics which you may or may not be able to do anything about. When most laymen think of martial arts I'm sure they think of Bruce Lee or House of Flying Daggers or even The Karate Kid movies. The big thing you remember from these movies are the spectacular leaps or high kicks beautifully shot in slow motion etc... I'm not saying you should do some wire work but it might have been nice to see some more variety other than lots of sparing. I'm sure someone would have been willing to do a high kick over the camera or some such thing.
What you shot was probably closer to reality about the club but I feel some "add value shots" would have added more interest to the over all video.
Hope this helps for the next one.