Meghan has a perfectly symmetrical face, which is usually a sign of beauty and good genes.
Kate is a very attractive woman, and she actually looks beautiful when she carries a little extra weight, usually in the latter part of her pregnancies. She does however have a luminous smile.
Diana had a big nose and one eye slightly larger than the other, but they were huge and blue.
In the link I posted upthread, lots of the photos were taken off guard and there were no filters / photoshop in those days.
I din't know how you describe it, but the camera loved her!