So I could compare this to the source material, I tried to find the Tsubasa Theme on YouTube -- and I did, only to find that it wasn't a very good song...
Luckily, your song doesn't sound much like it (or at least the version I heard). But there were still problems.
At times during your audio of the song, I had to turn up the speakers to even hear the sound. I understand that you want the dramatic effect, but I shouldn't have to do that... varying with the volume that badly isn't a very good thing (happens numerous times from about :35 onward).
I thought the song was repetitive, and... again, I can't stress enough the changing volumes -- at point, it went so low, the volume disappeared. Whether that happens or not in the original, that just can't happen in a submission on Newgrounds.
Anyways, it was still a good effort -- I did enjoy the sound at around 1:54 (save the annoying crescendos and decrescendos).
Don't get me wrong -- this song isn't bad... but it's not that amazing either.