Very well thought out and inspired soundtrack! The story is short and sweet and fits the music perfectly. If I could give one critique, it's that I would have liked to see a little more movement in the soundtrack as a whole, especially on "Stillness' Lair." The end credits theme goes harder than the rest of the soundtrack, and it feels more to me like parts of it are advancing the story rather than re-telling it. This track has some nice chord progressions and resolves on a beautiful note, but the ending does feel slightly abrupt to me.
Great sounding OST overall, nice job!