This photographer named Steve McCurry took a picture of this girl in Afghanistan. National Geographic put it on the cover and she was instantly famous and iconic because of her striking eyes and intense gaze. This cover helped change the way people viewed Afghanistan worldwide. This is that girl now holding the picture that made her famous.
No need to be rude about that, the guest may simply have wanted to put in their own input although it may be obvious it's their comment and so you don't need to be mean about it!
Her eyes have definitely lost something over the years. I guess life has been beating the hell outta her.