There are some bangers on this OST, especially the first and fifth track.
The first song is a banger, I love the 2nd track with the melody oscillating through filters and the chord progression, they sound so cool.
I think ARC2To's theme is my fav track, the melodies are memorable and the song is just wonderful. Also there are time signatures that changes on this (5/4 and 7/8 )?. Either this or the closer, it's a very good ambient track.
The only flaw I can think of is the theme that is a bit far off the "Inside my world" idea.
For the moment this is the best entry I ever heard coming from this jam.