I'm weight painting my model and I am getting weird deformations on the back of the head. I can't figure out how I should weight paint in order to get the back of the head to follow the face when turning.
The file is located here: https://drive.google.com/file/d/1WajpFseBrH8aKv4AlK9S-y8q88ELArbA/view?usp=sharing
Any help would be greatly appreciated!