I need help with model (animation)

[Antar36]

I need help with animation model. The Skull mask is not with head all the time. It's just running away. Especially during the animation of death. When all the time is in the air, not next to the face. I want to improve all the animations, but I do not know why I am asking for help.

I used neArcher by Cuore ,and necromancer by Stefan.K

 

[Hermit]

Here you go:

 

[Antar36]

Thank!