Echoes From the Past: The music box and/or vibraphone in this track feel very reminiscent. And the rolling swells give an ethereal feeling. I can feel what the character is feeling in your story!
Raging Sea: I love the use of the 12/8 time signature. It makes the percussion feel really interesting. The feeling I get when listening to this track are a haunting and ominous feeling.
Aquatic Perseverance: I hear the Donkey Kong and Vangelis influence strongly in this track which is my favorite of your OST! The now-driving rhythm feels like there is now more intention in the gameplay. I really like your instrument choices in this track, in particular the delayed mallets, electric guitar, and choirs work really well together.
Drowning Into Despair: The dark ambient vibes describe your story perfectly and the image you made for this track is my favorite. I like how you use many instruments to create a feeling a deep stillness.
Acceptance: You have great mixing, especially the panning of the piano. I love the voice swells, it makes it feel like a somewhat reluctant acceptance.
Overall: The way you presented the story and the images you made to accompany the story help elevate your OST to give full immersion into your story. You have a unique array of influences, and they meld together nicely in your distinct style which was a pleasure to listen to. Well done and thank you for sharing!