I really like this demo. Really interesting world. Combat was almost always challenging. Usually I just walk past as much encounters as humanly possible in rpgmaker games, but I actually found myself getting bodied 20 mins in and had to go back to level up more. Nice to actually be challenged.
^Actually realized I just wasn't equipping my insane jack card. Still all the combat encounters feel fresh and not grindy so I enjoy them.
Music is also really good, I like the music in the fish folk area.
I do think you should consider getting an artist to redo the character art, or redoing some yourself. The current mspaint stuff isn't completely terrible, but it's not good. And since this art is getting reused constantly throughout the entire game I think there would be a lot of value in upgrading it. But there is a certain style to it currently.
I got to the bottom of the well, probably going to finish it later