Good job, I like how the songs are all different but still recognizable as a part of one ost! My favorite tack is the first one, and I also like the 2nd.
On a critical note, 3rd and 4th tracks (origami and deep breath) seems less lively and dynamic, in the arrangement, and I think piano could give some breath to the other music in the 4th track! Its motive was hard to follow, a lot of notes just going and going... Still has vibes though.