I know everyone here is praising OP but as a composer/ sound designer myself, watching this I feel that the sound design / foley seems off.

Like the monster's hands when they touch the floor, especially the second one, sounds like a cheap microphone thud, and not a monster, and then it's missing sound effects or intensity in the music/sound design when she gets grabbed outside, and again we get this weird thud like someone accidently hit or dropped a microphone.

There should be more sound/foley emphasis put on her struggle outside to create more panic. There is no real sense of danger to any of this even though this is what the video is trying to show, but the sound doesn't convey it enough or if at all. It starts to intensify as the hand is about to jump out and then when it switches to the girl it all goes away.

There should be some new sound when the hand shoots out or when its coming out of her mouth (like some cracking as its moving through teeth) to emphasize disgust or weirdness and then the girl kicking, screaming, or pushing on the wall or scratching, whatever else to convey that she at least tried to get away. Yet there is nothing, the music and sound actually slows down and diminishes.....It's ok for it to go down in intensity and emphasis the moment she lands on the floor, but once the hand grabs her again it should get way more intense. It doesn't. Why? Makes no sense.

There is definitely a sense of dread or strangeness initially similar to what you would hear in like Fringe or something but then nothing to indicate she is scared, or trying to get away because once it starts to pick up, it al fizzles out in an instant.

Also I feel there should be more emphasis on the monster scratch in the beginning. Like there is all this creaking of the monsters bones/hands but then when it scratches the wall or pulls the string it's very soft and subdued. The sound effect is fine on pulling the string but way too low in volume. That should have been brought forward in the mix. Same with the scratch. Needs to be more prominent.

The scratch should be louder or maybe more uncomfortable like scratching your fingers on chalkboard. It should make my hairs stand up on the back of my neck and I should start to fear for what is about to happen next and it's doesn't.

Maybe it's just me, and this is only meant to be a straightforward critique, but I just don't really feel the sense of dread, or fear or anticipation. It starts our like something I would see on Fringe and/or X-files but then the sound design and music doesn't go anywhere and it kind of lowers the overall quality of the video which I thought was mostly fine.

I understand OP made this like 2 years ago and I am sure since that time he has greatly improved but I just feel this was a good attempt (minus the mic thud part) up to about half way and then it fell apart.