Nice work! Just a few moving parts yet you crammed a lot more depth in there than I'd expected!
Really like the sound work so far, and the pixel art is nice!
Standard feedback about turn priority applies, though some other mechanics took me a while to really understand. Enemies not having to be on the tile straight across from me especially confused me for a while. Perhaps adding an option in that shows which tiles you / enemies are able to strike in would be a neat addition.
Next bit of advice would be to work on the game feel a tad. The presentation so far is super impressive for the scope of the jam, but going forwards, a little bit of animation would go a long way. Just a simple idle for when creatures / the player aren't doing anything would make things feel a lot more alive. Then some dust when they move, making things feel more grounded.
More sound would be great too! Like a simple shuffle for when a character moves, it would greatly improve the connection the player feels with the game.
Overall though, great stuff!
More content, and more polish, and you've got one heck of a game on your hands!