Very cool, but plenty of room for improvement.
Now this was a pretty neat flash. It just proves the point there doesn't need to be a 40+ episode series just for one fight. Some good character designs, although not very original for our protagonist, and a bit scruffy but I'm sure you will improve on that in the future. The gothic theme has been done to death, but has been well incorporated. Only one thing was a bit off for me; at the end the guys face looked different than it did in the beginning when he takes his glasses off. And add some credits at the end. It's just a curtousy to state where you got the music from.