I really feel like people need to stop trying to make these sorts of robots look so "human-like". The effect of a mouthless bald doll head strapped on top of an iron man robot isn't exactly comforting, to me anyway. It starts to hit the uncanny valley a bit
I feel like the funny part is that there are so many "robot" mask designs in pop culture that would look 1000x more comforting than a slightly psychotic looking robotic doll