What could be a good idea, no idea on whether it's actually possible but this is the idea:

Whenever you move the root of the head the character's Camera should also move with it. Issue stands on me not knowing how the view of a player even works. But it'd help just make the head move the same amount when you move the camera, or say if you have a first person player model mod installed you can actually see.
The second idea that ties into the first somewhat is linking certain cubes to move when something is done. Say looking around. If a player has a model with a neck made of multiple segments. it may be good to actually make it that the cubes are able to partially move with the head. to keep a smooth connection.