I hope I am posting this in the correct area. For obvious reasons I have a very large model of a villager head that is in two halves (remodelled diamond hoes) held by armor stands riding eachother .. riding a zombie. See image attached. I'd like the entire head to turn around and move, but currently the two parts are not turning together. The bottom half moves fine but it looks like the top part is not moving at all. Any help appreciated! Thanks!