I see, it's quite interesting to see the process, and the lighting effects were good in my opinion. For horror, I advise focusing more on the fear factor and ways to immerse the player in the world than on the gameplay, not that you should completely ignore it, though.
And as for that new game, that is such an interesting idea! Stress-inducing, fast-paced gameplay usually goes hand-in-hand with horror, so I would love to check it out when it releases! I'll be sure to keep an eye out in the meantime.