Incredible game. I had to make real choices in gameplay that mattered a lot, and i had to make them often. The music was very calming, and the visuals were great.
UI/UX design needed some work. The [?] menu should've been active by default (but polished and reworked), and it should be replaced with a short text tutorial on what to do. Maybe a dialogue box with a short tutorial message shows after each level?