Check out the animator Georges Schwizgebel, I watched a DVD of his complete works the first time I did MXE and it was absolutely divine.
https://www.youtube.com/watch?v=GPRrhdnYNmM
https://www.youtube.com/watch?v=GPRrhdnYNmM
I just watched that the other day and was thinking the same thing. Very atmospheric and moody, not a lot of dialogue, visually intense. Not quite in the batshit insane category, but close and quite dark.You should give Under The Skin a go. Aboslutely bonkers, i've never seen a film like it