The overall composition is great, simple melodies but work really well and mesh with the textures you chose. You also managed to keep ambient elements even in fast-paced tracks, which is great (I'm thinking of track 4).
I had a blast listening to this ! Only problem is, your submission is 6:04 long, which is against the rules.
Nonetheless I would love to play the fictional game you were making this track for. Good job !