This was my favorite song in the game. Being a tough Final Fantasy critic, you did quite well here. :)
Great interpretation of the song.
The strength of the piano was good, but the guitar did not sound effective enough. It should sound like it can tear through a wall when it comes up. The overall melody was spot on, which is what matters the most. Great job.
Please contact me if you would like to use this in a project. We can discuss the details.