I have played your demo. A few days ago, just now have the time to post.
It is really short, I wish there was more to play and see.
However, the game offers a really nice atmosphere, and for the little I could see, interesting characters and great dialogue.
The Mapping is good too. The pallete you're using add a nice effect too.
Well, it's a good demo, and hopefully the full game will be too.
I wish you good luck on this. I'll be waiting for the full release, even though it will take quite a long time, I presume.