I've lurked around the site for 10 years or so, just reading and listening, but I had to post something to encourage remixes of SaGa Frontier. That game gets so much (undeserved) hate from Western audiences, leading to the fantastic soundtrack being overlooked for remixing (at least by Westerners). As you can tell by my username, I'm a big fan of the game.
Anyhow, I really don't know much about the mechanics of remixing, so I can't give much advice. The only negative thing that stuck out to me was that the flute (the one that the primary tune is playing) seems to get drowned out at times by the rest of the instruments. Is there is some way to feature it more prominently without beating the listener over the head with it?
The rest of the structure seems pretty solid to me, but I'm a lawyer, not a member of the judges panel. I think if the judges panel were to complain about something on that front, they would think it a bit too repetitive.