I'm not going to pretend I listened to every single second because I just don't have the time T_T But I did listen to Hildegard Vision in full + large chunks of the other tracks on the OST, and what can I say, it's brilliant :D (and I will come back to it when I have more time!)
It kind of reminded me of an album I bought from a doujin artist years ago! It was music that could be used in games, and I bought it with the intention of eventually using a couple of tracks back before I started trying to make my own OSTs for projects, but also just because I really liked the sound and wanted to listen to it in general!
I definitely think the overall sound of your OST is slightly harder hitting than that album I bought though, along with feeling fuller, if that makes any sense, haha. I don't know technical terms for things, I'm sorry T_T Theirs was more sort of dissonant and empty in places by design, whereas yours is more atmospheric with more intention and emotion infused.
I have seen a few comments here and there in this jam on different submissions where people have stated needing an explanation of the type of game the soundtrack should be used in/exact use case of each track, or they can't see how it would fit. While I think it's cool to have that level of detail, (and sure, in some cases, it helps to better set the scene) I don't think it's entirely necessary to get an idea of how an OST would fit.
This is the sort of OST where I can see scenes unfolding in my head as I listen. It doesn't need hand-holding to evoke imagery. I can see this OST working well in several game genres! Heck, I make visual novels, and with the right story setting, it would work great as a VN OST even :3
Anyways, I'm rambling, sorry >.< If I had to pick a favourite, I would say maybe Blinded By Kindness, but it's a tough one! There's something about that track in particular though that gives me a hit of nostalgia and I can't quite figure out why, haha.
The entire OST feels like a journey, and it makes me sad that it hasn't got more ratings yet because it's a really creative and unique submission!