Stunning intro. It really is fantastic. Starts quiet, yet manages to grab my attention. I think at 1:37 there should be some sort of reverse cymbal just before the drums come in, or at least some sort of indicator that the main part of the song is about to hit. Same with 2:40, as it seems a bit sudden.
So overall, the ideas are really good and work very well, but the transitions from one part to another need some work.
Great to see you trying out a different genre :)