I usually avoid horror games or anything with gory visuals. Still, I gave this one a try to see what I could do. There's no small or big jump mechanic—the jump height is always the same—which makes some sections quite tricky.
The hitboxes and hurtboxes feel too unforgiving. I often feel like I'm several pixels away from the spikes, but they still hit me.
I also couldn’t put the game in fullscreen, which is a drawback for a platformer—I lose precision. (You can enable fullscreen from the game's itch.io page settings.)
Aside from that, keep going—this is a good start. Good luck. (I'm really not into horror or gore, so I'm the wrong audience haha.)