-_-
I'm not being nasty or biased against sprite movies, but i have to say that this is bad. It's too slow, rather boring, and I'm sure you can do better.
Using more sprites to create smoother animation would be a good idea. If there aren't any extra sprites, as may be the case for Cloud, perhaps making in between sprites would help.
Don't pause the movie to show words for the story, as it misplaces the rythym and slows up the whole thing. Perhaps keeping a voice bar on-screen would help, like subtitles in movies, as you can animate behind it and keep the fight flowing.
Don't let negative reviews put you down, but keep all critique in mind for future animations.
good luck.