You have a very good atmosphere going on here! The sounds and scribbles are very well placed. 

The lantern with it's charging mechanic was really interesting and useful at first, but once you die and know the route you don't really need it. Still, it gives you something to do while you fetch the key, which is a nice touch. Instead of autocharging it, you could make the user have to manually charge it to keep them even more engaged (like in Amnesia the Bunker).

What I felt I needed the most was a setting to adjust the mouse sensitivity. The default felt a bit too twitchy for me and made it difficult to navigate and explore the environment.

Otherwise, the key room's door (might be other ones too) has quite a long range. I was trying to interact with some stuff on the wall, but I ended up closing/opening the door from across the room, which felt a bit weird.

Overall, I think the mechanics need a bit more polish, but you are very good at creating atmosphere. Cheers!

Game could use some work ill be honest, but i really liked the atmosphere!

for starters id remove the mirror, because this was more terrifying than the monster

some background sounds would also nice (just white noise), adds a bit of suspence.

the camera wasnt very good either, something with the pivots makes you unable to move the camera right.

i liked the flashlight having a usage meter. but it was never really necessary. All in all this needs a lot of work, but i like the concept! i also liked the wall drawings. Great Effort!

also this isnt really important but i think everybody who played a game before knows what each key in WASD does. saying WASD for movement and then going off each key is redundant, id personally remove it.

For the suggestions I would add some settings to control loudness of the game. Footsteps of the character would be great to add depth and immersion to the game.

I got really scared by the reflection in the mirror!

Scary indeed. I died. Found the shadow monster and not sure if f have to fight it with flash light or run. I decided to use the flash light, but it goes below me and the i died. What did the shadow do to me? Maybe make the screen red would be better.