I love it!
It's a great ambient song, that builds up tension and leaves the listener wondering what's going to happen next and therefore it could definitely be used in a way to accelerate tension. Though the song progresses pretty slowly and the song is basically just a (very) slow progression that, in my opinion, could go into a chorus/drop, but that's just me. Overall, though, you show a lot of potential and that is why I'm scouting you! Hope to hear more from you :)