The first part is BEAUTIFUL! I love the harmony soo much, and the melody floats above it perfectly, and it makes for am amazing, melancholic piece of music.
The 2nd part is so serene and ambient, which seems to be the perfect fit for it's description. The 3rd track also represents it's place in the story really well.
I really enjoyed your use of sound effects and recordings, as to add to the ambience and story. (I also really liked the drum fill towards the end of the 3rd part, it's really well placed!)
Great music, very inspiring, great job!