Lol, bro! You made this song sound like if Majora's Mask and FF7 (specifically the games, not the composers of the music) ripped each other off! Imagine Link with a buster sword and spiked up hair, hah!
I enjoy the composition for what it is. It's definitely fresh and while not exactly 'original' (deerrp) I think it pulls off an odd and kind of original quality. For one thing, there isn't a hint of evil in it unlike the original. More of a sadness (AERITH DIIIIIIIED).
I don't really feel the 'swamp' bit. Then again, you wouldn't call it, "That Overarching Majora's Mask Theme That Plays In Each Realm Initially, Until You Beat The Boss In That Area's Temple," so the name works.
Your mixing sounds great, but I think the panoramic sound is leaning a little to the left even when the music swells. I think I might be having issues with my right ear right now, though... I can't be sure.
I like this and I don't want to be a twat, but I feel like it needs to be longer. I can accept it as a sort of short theme for a scene, but Aerith can only die so many times (I gotta stop saying that). I feel like this really has the potential to be a longer song, maybe even a medley (I know how overdone that is, but still).
Anyway, fantastic piece, want it to be longer and that's it.