This piece has a really strong "eerie" feel to it. Like Metroid Prime in a room where the power is out and it's difficult to see anything. Feels like paranoia.
It makes me want to run away from wherever I was headed. As a horror piece, this succeeds. Well Done! :D
The only thing is I'm not sure about what your piece's thumbnail artwork has to do with the song. It's hard to see. Can you elaborate on what that is and why its there?
Other than that, I think your vibe comes through loud and clear. Well done! :)
More info about how I review music here: https://codefreq.newgrounds.com/news/post/1089806