Nice sense of movement
The string and choral sounds really mix well! I really like how the strings move not all in 'blocks' but against one another, creating a bit of counterpoint, and yet the basses/celli have a very steady pace to them. The fact that you're not recycling the same set of 2 or 3 chords over and over really helps I think, that it keeps moving to new sonorities really helps that sense of movement and keeps the steady bass motion sound grounded but fresh.
The way it moves reminds me a bit of Samuel Barber's 'Adagio for Strings,' if you have not heard it I highly highly recommend giving it a listen. If you've seen Platoon, they use it in that movie.