Wishing Star
Astral Charm Owner
Although even though I didn't get there (thanks youtube for osts) Iris's theme is too light hearted for champion, it is good but to me doesn't fit the mood.
You should've played through the game to hear the music! o:
But yeah, the song could've fit the mood a bit better, but if you're asking me about the music itself without considering where it's played in the game, I'd say it's a fantastic track.