Re: hips and shoulders
We could add hips and centre, hips and feet, hips and knees, hips and centre line etc. Upper and lower body.
I like the upper and lower body differentiation personally. For example you can have the hips turning one way whilst the upper body turns the other.
In fact I would say that a lot eventually is done from the lower, the koshi, leaving those looking at the hands and upper body movement bewildered as to what's being done.