Not bad, really not that bad :)
I like the dialogues, they give the animation a bit more in-depth than just a casual fight, but I think that you should work a bit more on the background visuals, and, especially, on the "epicness" of the fight.
The fight seems kinda dead and with barely any action, try to spice it up by making dirt splash when the character lands on the ground, adding some "punch waves" or something xxd, more fluid movements etc. , I hope you know what direction this is going.
But yeah, this animation was done pretty decently:D