I got Final Fantasy X vibes with the intro, then the synths came in and gave me a Final Fantasy X-2 vibe. That's not a bad thing: if there's one thing I love about X-2, it's the music. :D
Your dynamics in this piece are excellent, and then when you get quieter around 2:24, it gives you a vibe as though you are inside the body of Sin (another Final Fantasy X reminder). Very, very atmospheric, and very heartfelt.