Damn dude this is sweet.
I got both goosebumps and visuals when I closed my eyes. Excellently done.
I think for constructive feedback, my only minor critique would be that I felt like I could have had a little bit more variety on the high pitched sounds... almost like that part occupies the forward upper register, as if it is its own voice singing, so when building up to a transition, maybe it would slow down and change. It's like that part was a bit busy and out of balance.
Regardless, it was very good, I really like this one a lot.