Jane's gorgeous overhead squat.
In this photo you can see that Jane's knees are tracking out in line with the foot. Remember that the further angled the feet the more the knees have to push out to the side.
Here Jane's knees could be pushing out more to track in line with the feet. This could be a result of too wide of a stance or just plain fatigue (she is in the middle of a grueling metabolic workout).
shoulders- Her shoulders are actively pulling up. A good visual cue is the creases in her shirt around the shoulders, which indicate that she is pulling her shoulders up. Think holding the sky up with the bar.