Great visuals, you managed to create a really interesting atmosphere.
I don't know if it is just on my end, but I didn't hear any sounds. It is a shame, cause given your strong visual atmosphere, a bit of sound could create a really immersive experience.
That said, this felt more like a proof of concept of the main mechanic than an actual game. If you add more content you can create something really interesting with this idea. I will keep an eye open on what you will make next, cause I can see great games coming your way :)