It's good to see you continuing to work on it.
Some changes are really good. The dynamics on the hair are REALLY impressive.
The right hand, however, still looks jerky, as if it's hitting something.
Here's a very crude mockup I did in Photoshop of what I'd expect the arm's motion to look like.
Yours is on the right for comparison.
Try to ignore the artifacts.
Consider I had to rotate the arm individually in each frame and sketch up something to cover its original position.
Also, I think the shoulders need some bouncing motion too.
And I'm not sure about the motion you added to the head. Is it me or the head is moving sideways?
The motion should be only in the direction in which you signal "yes" with your head.
Nice work. Now that I see this on my computer, I can appreciate the effort. It really helps to illustrate what you mean about the the arm looking as though it were hitting something invisible instead of circling smoothly.