It's a good start...
... but's there's PLENTY of room for improvement.
First of all, the audio is laggy, repetitive, and low quality. Might I suggest using better audio resources or cleaning it up yourself. Secondly, the animation itself is great, but too many times the transitions get a bit choppy. Add in some more frames to make it more fluid, and you'll do fine. Third, when the get into those "mini-fights" (the ones when they're in each others' faces) they use the same moves over and over, which detracts some of the essence from that brawling-experience that we love ever-so much...
Besides those slip-ups, you're doing okay so far.
6/10
For giving an exceptional work-in-progress that contains some good potential.