I really like it. The backing bells, synths, choir, organs and other things I can't identify are not overused, used only at strategic moments, which I can appreciate. Strikes a good balance between grandiose and quiet, neither overdone nor boring at any moment. The pauses where the strings take over are a nice contrast to the piano.
The ending kind of trailed off, but that's not a big deal for this kind of music.
All I could suggest is slightly less overpowering piano (it sometimes grates at the ears at higher volumes) and a stronger ending. I'm favoriting this.