Just my observation, but before VII, she was very serious. The woman saw the holiest of visions, some of which were terrifying. Her demeanor - even as child - always reflected that.
In some pictures where she is somewhat smiling, it is in the manner of, say, St. Terese - solemn and dignified.
After VII, she seemed to be clownish and almost silly. I could never reconcile the two personas, they are so distinct, or that she participated in the new church. If she was privvy to visits of our Holy Mother, etc. she would not be part of the great deception.