I made it up Trainwiz, and that seemed like the end of the demo.
I didn't find any obvious bugs, so that's good. I was able to scare a skeleton into jumping backward off a cliff, and the strong skeleton in the temple at the beginning got stuck on part of the terrain one time. I think that was it.
The art style feels authentic. As for the combat: even though it's just a demo, I would suggest adding some feedback to the attacks (particles, sound). It's hard to tell when you land a hit/parry or when you take damage, so it's hard to evaluate whether the combat is fun or not. I think I was able to parry the kobolds, but the combat feels unclear without a little more polish.
Good luck!