First and foremost, this film would be a lot better if we didn't know the entire time from film descriptions etc that the uncle is abusive. But we do, so the film is extremely straight-forward. There's heavy symbolism, but it's so obviously not real and we are beat over the head with it, so it's easy to figure out and it's not trying to evade that.
SECOND, I do not understand some of these reviews. Some say it's the scariest movie or scenes, but I don't see that - and no, I hate jumpscares and am not looking for gore. Also those who said they felt shocked at the end. Reading that before checking this out, the ending was so plain and abrupt that I was left saying "What? ..... WHAT?" in confusion how that was where the film ended.
The only way this can be actual horror (as opposed to an artistic depiction of an abused person and their psyche) is if you are deathly afraid of that puppet. And yes, it's creepy and I hated seeing its face, but it is not onscreen much at all. Most of the film is the camera watching Philip from a distance walking around in still outside scenes.
Also the heck were those things in the jar?! That is the one thing that was actually unclear to me, and clearly they are significant.
Oh well. If you want very artsy, low dialogue psychological drama with some creepy moments showing (simply showing, like laid down in some grass) the "puppet", this is for you. But I wouldn't dub this horror, nor nearly as good as people claim it to be (under the horror label). Definitely felt like a slow burn with almost no burn, just a bit of a flicker at the end.