"A lot to learn" is absolutely flattering.
This being, and I say this in the humblest way possible, my first OST, I don't really know what I did right or wrong, but I do know that I would emulate other songs that had the sound I was looking for, then modify them. For example, on Strange Visions I just took The White Lady from Hollow Knight and moved some notes around, added some, removed some, until I was happy with it and it sounded unique enough that it wasn't a copy
So I guess my advice is listen to a lot of similar music? I hope that was at least somewhat useful