Lots to love about your project here. I totally dig the ominous red gradients and the stark bold lettering to introduce areas. The sound design adds to the tension throughout. And the art assets reminded me of Inside mashed with Thomas Was Alone.
My advice is that I think it's a little unforgiving. Instant deaths combined with lights very suddenly turning on, maybe in an area you just got to and haven't seen the pattern yet, plus no checkpoints within the levels, can make it kind of frustrating as you have to redo the same parts several times. Maybe the lights could glow somewhat before actually turning on, that would give the player a warning and more leeway.
Just a tip. Overall, an excellent entry! Keep up the good work.