Really interesting demo, got a lot of good world building and a really well crafted and even voice acted narration of (What seems to be) a brilliant story. The art direction as well as the cinematic memory feel is nailed perfectly, I personally really like it.
My only uh, suggestions, would be to, if possible, use a original soundtrack, even if just a basic OST because the songs kinda felt out of place, and also personally I found the ending of the demo to be very VERY tension/immersion breaking. Should also be careful with that loud static noise, it went from unnerving to annoying real quick.
I feel this project has a lot of good things going on so I hope dev, that you can polish those edges.