Phew, that atmosphere was on point... Really creepy vibes. I unfortunately couldn't get past the second house though, I couldn't find the 6th area to scan, and I went over everything twice. I'd love to try it again with maybe some way of communicating the areas to scan a little better to the player! For the parts you wanted feedback on:
Horror feel: Excellent, the constant hum and feeling of isolation really put me on edge.
Sound Design: Again, really good and sold the horror vibe really well.
Storytelling: I would love to comment more on this, what was there so far definitely had me intrigued!
Visuals: The lighting was the highlight for me, but overall I thought the visuals were very polished for a game jam, especially a 3D one! Awesome work!
Let me know if you update it or clarify how to continue, I'd love to boot it up and try get further into the game.