I don’t believe in invidious comparisons as a rule; I like the look of bottoms and they are all attractive. But if they had a “prettiest bottom about to be caned” competition, you’d have to admit this would be a worthy entrant:
You can click here [update: sorry, gallery is gone] to see that same pretty bottom with a breathtaking set of ruler-straight red cane welts. (I particularly like the shot where she’s clutching her sore cheeks with such vigor that she’s parted them, exposing her anal rosebud as if to offer it to the viewer.)
Picture is from Spanking Online.