The costumes and special effects are wicked good, props to'z you.
As for the fight, I recommend using some closer shots and a wider variety of angles. Long takes are only good to exhibit artistic-like realism (like in Tom Yum Goong, Oldboy, Shogun's Ninja) or really long choreography exchanges. The choreography itself was a bit dull but it looked like a fight from a classic Toku show so if that's what you were going for then I guess that's cool too. And always remember--zooms are your enemy. Any semblance a film has to looking professional is always ruined when zooms are used... it's just the most home-video thing you could possibly do. Play around with camera movement during the fight, circling around or panning with the fighters, with lots of variety in terms of distance (and don't go too far away when doing distant shots), camerawork is 50% of a great fight scene.