a lot of the mix sounds thin, the background pads and bell textures kinda bleed together and don't have a lot of presence, especially compared to the percussion. the bassline sounds good, but it's not loud enough. i liked the flute section (i think the flute should have played a larger role in the track as a whole), strong melodic presence there, but some of those higher notes were a bit on the harsh side.
arrangement-wise, there's not a lot of deviation from the source apart from the intro and the change of key. try to add some more variation to the melodies, or some of your own counter-melodies or harmonies.
also, you're right - i played through a decent portion of this game and didn't really remember any of the music, but listening to some of it again now, there is definitely some cool stuff here
edit: also just fyi your sig image, although awesome, is 15 pixels over the limit