Agree on the stock and also agree on the fine shot! The arched back stance reminds me of offhand target shooting with a heavy rifle, so maybe as much the weight of the .375 as the stock dimensions.
She looks to be the age when a shooting scholarship for college may be a possibility.

I am sure someday that I too may have to break the bad news to my daughters that the boys "just love you for the guns" no matter how pretty they are...