I hope these are early protos because they look pretty bad. Newmar's head looks big and too round, the hairline is of course wrong, the eyebrows don't have the little sharp cuts, and the hair is atrocious. The costume is terrible and incorrect and the material looks cheap. Above all the body is too short and generic. At 5' 11 Newmar was statuesque and voluptuous. Too bad Tweeterhead doesn't make figures because they absolutely nailed it.
Eartha's mask is wrong and the costume has the same problems. I don't think it was leather but a more of a spandexy form-fitting bodysuit. I can't tell much about the sculpt otherwise, although does seem closer than the Newmar. The main thing about Kit is that her face is very square shaped. The body is fine on this one since Kitt is probably in the 5'4"-5'5" range.
I always liked Kitt as a performer, but not as Catwoman. I took my kids to see the Wizard of Oz at the National Theater about ten years ago. Eartha played the Wicked Witch and was fantastic. Mickey Rooney played the Wizard so you can imagine how cool that was. We had box seats so we could also see how much they were acting with their faces.
If these are significantly improved I'd likely pick up both to go with the '66 Batman. But as they are now not a chance.