Hi Timmo,
I saw your post and the progress on "A Mountain and Omelette". The medieval real-time tactics concept looks amazing!
I know you are currently looking for art, story, and voice actors, but I am a music composer and I would love to create an epic, medieval soundtrack or ambient background music for your game.
You can check out my music portfolio here: https://musicmuse99.itch.io/
Let me know if you are interested.
My Discord username is: musicmuse99.