Help recommendations

Hi, this is one of my most recent drawings. I was trying to draw a robot head recharging however I don’t like the way the hair turned out and there are some other aspects of it. I don’t like. This was a quick little drawing, so there was nothing special about it however, I like the concept. Does anyone have any recommendations to make it look more robotic but still keeping it human like looks. Also, any recommendations or criticism please keep be nice. I do plan on trying again. Hopefully, it turns out better.