Curse of cards - underwater ambience creation

I’m working on this deck builder dungeon crawler called Curse of Cards and i’m going to start trying to share what i’m doing on it. This video is how i’ve made the underwater ambience for the game.
It’s a longer video, as i’m trying to sort of go through it as i’m making it. I’ve not properly worked out the format yet, so it’s perhaps not entirely clear how to follow what i’m doing. But i hope it is at least a bit interesting to watch.

If this a genre of game you like, it is going to be really cool when it’s done. Wishlist here: https://store.steampowered.com/app/4207000/Curse_of_Cards/