Depending on the kid, I use a few different cues to achieve good FSR. A hop is one. Pulling an imaginary rubber band from the toes to the nose is another. Step backs, nose behind the toes, stay tall, keep the right (or left) shoulder back, chin up... There are more that I can't think of now. Each kid seems to respond differently but it's good to have as many cues in your tool bucket to try until one clicks.
BTW, I think your daughter's FSR is better than some you named... I would consider her a model example of good FSR.