As Milia mentioned, I handled all the arranges. The dungeon arrange in particular was inspired by "Water Prison" from Ys Origin and "Crystal Teardrops" from Symphony of the Night. Thank you for the kind words! :)
It also reminds me of old games's ambiences like Donkey Kong and Chrono Trigger! The choice of instruments really made me feel immersed in the cave! Once again, my applause, man! (Google Translate)