I have watched the example, and I have a few suggestions...
Firstly, some of the music hasn't been changed. This may be solved by incorporating the OverClocked Remix album Voices of the Lifestream. It is a free download, and they have almost every bit of music remixed. Also, the ochestral version of One-Winged Angel from the More Friends album, which I would assume you will be using, is recorded from a live concert, so therefore there is a lot of cheering when Uematsu triggers the first notes of said song, so you may wish to use the remix. Or you could just use the Advent Children Soundtrack.:D
Secondly, Cloud looks really dark compared to the rest of the characters. Maybe you could lighten his color pallete? Or at least throw some light on him, for pete's sake, he looks like some shadow-mongering vampire. Oh, wait -