I've had this remix a while, but just now got into the forums, ok, on to my review/rant 
Aerith's theme in happy, energetic samba  ......i'm no expert but I think that clashes a bit.   Not to gripe, but her theme was supposed to be sad/emotional, something that almost makes ya cry (i know i almost did  and yes, i know happiness is an emotion, but you get the drift) anyways, it is a great remix, though i just don't think the Genre fits the original feel of the song.  Keep up the excellent work 
 
-Dark-Hunter