Oh yes it is true some kids can be touchy about hair but Isabella was out at an event with her hair in soft curls and it was adorable.I guess for a family photo and she has been running around with her cousins and other kids it could be worse.
I don't have a problem with Isabella's hair. It looks fine to me, and as others have said, she was probably running around and playing with the other children so it's natural that her hair would look a little messier than usual. I agree that Isabella looks a lot like Frederik. I think Christian has the same "mannerisms" (not sure if this is the correct word to use here) and posture as Frederik, though facially I think he looks more like Mary. He has her eyes IMO.