Facial deformation with arm movement

Im having a couple problems with my armature here. Since his arms and legs are attached to his head, his mouth and face are deforming all over the place when i move his hands and feet. Also for some reason the tips of this right fingers seem to be married to his left hand. No idea why thats happening.

Help would be awesome!


lil_Gorilla14.blend (1.45 MB)