Might be something with the mixing but the strings don't really sound full. Feels like theres some empty space in the song. The actual composition is pretty cool. Reminds me a bit of old JRPGs, although the choir ahhs sound a bit odd. Again, I think that has to do with the mixing and not so much the composition. They just sound flat, or static rather.
Not a fan of the ending, I feel like the song was just getting started. It had a lot of tension going on and it just ended so abruptly. Feels like something even bigger needs to come up after.
It was nice work though.