The vocal parts are a great addition to the track, listening them coming in and out felt like a treat to me. the over ambience really nails the exploration vibe you're going for. And the music video is amazing, I like the different shots of you playing the piano and such.
Now about me being nitpicky, since I saw more shots in the music video about flowers than water or like the ocean despite calling it the Song of Ocean, not even a stock video or something. But the fact you decided to make a music video is enough for this soundtrack to be good.
I heard from the discord that there are some strange comments out there, something about lawsuits and divorce.