Funny you mention Leia’s movement cause she was a real actress under the CG face. (Unless you meant facial movement.)
I meant the whole person, same goes for Tarkin. I don’t know what it is, but they both do not move like they were actually there, something’s very unnatural about the movement.
Both were played by actors on set an only the face was replaced (well, with Tarkin it was the entire head) but the body was that of a real actor in costume on set. So if you think the body movement is off and looks cg, that is kinda a compliment to the CG.
As for the quality of the face, I found both to be hyper detailed. I think using a softening filter might make them less objectionable.