It has a lot of potential
A lot of things in this were good, such as the graphics or the picture of the people you drew, and at times it had a good mood that was set for the story.
However, there are somethings that you could use help on, such as : make the movement of the characters flow much more smoothly. The fight scenes seemed extremely choppy and it was hard to follow what kind of attacks were being dealt with. The story was a little hard to follow since the names were introduced so quickly, and it quickly changed scenes often, so maybe more introduction or less depth of story. Good choice of music, i really liked it. The movie seemed to be serious the whole time, and then it tried to be funny at some parts... the jokes just felt awkward/out of place. The sound quality was kinda shitty, but its hard to get good equipment. Uh... also for a lot of the movie the people talked in english... i think... but then at random times they would talk in japanese? chinese? i dont know... but not english...
Overall the submission has a lot of potential to do better, and i'm sure you'll get the hang of being able to make the submissions great.
Saw your latest submission, seems like your improving. But for advice, the main thing that would have made this movie kick ass would have been if the fighting was a lot smoother. So hopefully episode to to Zero Dragon will have a better fight scene.
Hope advice helps at all, otherwise your good, just some things you can improve on to make the submission a classic :D.