She is looking pretty good for age & stage imo. Just make sure she keeps
working towards more shoulder turn away, deeper racket drop and better
wrist position. Some coaches suggest to start with what you are doing there
with the wrist already curled in...helps get that feel.
I'm a big believer in trending in a direction of improvement; way more than
trying to fix for perfection.
Imo, just keep trending her to improved ck points and cues slowly and maybe
less frustration....especially with a serve that works as well as hers does now.
Pro Supex Big Ace