A very well done submission that captures the listener with its simple yet beautiful composition, nice! For me, I personally really like the ominous atmosphere from "Where No Bubble Dares To Dwell" which also does a good job explaining the story through music, but all the songs are really good as well!
Overall just some simplistic yet well thought out and beautiful tracks! You also did a good job telling the different themes each song represents in the story.
That's all I have to say really, have a great day!