Very nice. I think it evokes the feeling of walking down a trail in some misty woods where you can hardly see what's in front of you. I actually really like the drums, as they add a kind of primal element to the music that was interesting and a little surprising. But I do agree that they would benefit from being mixed a little more subtly.
Well done! I like it :P
Why did you put these heavy drums?
They were too loud in my opinion, kinda took away the mystery feel,
but then you brought it back once they were gone and the soprano appeared.
I think you should make these drums background drums.
Other than that it's great!