Desperately poignagnt. Filmic. Loops well enough..
All your work seems really filmic!
The song is wonderfully paced, the notes you dropped in from a high octave twisting my emotions round its little finger.
The faster part towards 1:30 provided a lovely contrast and nice respite from the tension of the earlier sections.
The song even loops well enough to be used as a background tune in a section of an RPG or something along those lines.
I don't have any real suggestions for improvement. Er... maybe it could be about 0.2s longer or 2s shorter, to make the loop match the beat perfectly?
Nigh on perfect.