Nutcracker.
Here's what I'm thinkin'.
Your slow motion - awesome, for the most part. The execution of the most badass portions of the fight that you displayed, such as the sword slicing through the bullet - Win. Like Edyrem said, though, adding more angles would enhance and strengthen said Win.
Seeing the bullet split from a 3/4th angle would sprinkle the needed amounts of Epic over that shot.
Second Idea:
I am guessing that you animate from scratch and use whatever idea flies into your head - for the actual choreography, that is.
-The swordsman ran in a straight line and all of the bullets missed. o.o
-The gunman did nothing as his brain was hacked in two.
For higher levels of fighting, have them react to one another. That's what makes it a fight.
If you take all of the angles away from the animation and look at it from a single camera angle the entire time, they are basically standing there, then one person runs at the other and kills him.
Work on that choreography. Impawtant schitt. I'm sure it'll improve, though.