The mouthing has not improved and she is rarely still. I have yet to see her "laying around the house." Our saving grace is that she does EXCELLENT in the crate and sleeps peacefully in there and the only time she whines out is if she needs to go outside to do her business. The above picture is her right after I signed "sit" to her. She is spot-on with the "sit" sign and responds to it 100% of the time. I've now added the sign for "wait" and she seems to understand the concept. I have been using it after she sits and when I'm setting her food bowl down in front of her. I don't want her rushing the dish, so she has to wait.
She LOVES to play with Willow and Willow enjoys Echo just as much. They are in a constant state of motion if Echo is out of her crate! I'm working with Willow to "be gentle." So here she is pawing Echo instead of pouncing on her!