Not bad, especially for a first submission
You certainly have a lot more talent in animation than most folks I've seen (not counting people from professional studios, of course). The flow of characters is good, and the characters themselves seem intriguing; even though we don't learn much about the characters shown, I really like the incorporation of different forms of combat (guns, martial arts, magick, etc.). The music, however, seemed rather lacking...it wasn't the worst stuff I've heard (not by a long shot), but the general amaturish MIDI feel of it had me wanting a lot more (but then again, I AM a composer by trade...). All in all, keep up the good work!