There are a few things that every fight scene needs, some people are fine with the mindless aggression that goes on in a fight scene in a movie. Two people are going at it and you have probably picked a side, but what is missing may be a key point in the story. The two people have to be fighting for something.
You also need variety, change it up with kicks and punches instead of the same repetitive movements all the time, and make one of them the winner, give someone the power. Key Takeaways: Your fight....