If asked if I were the photographer, which of the photos of the matadoras I would have published, she would say the one on horseback.
Indeed the photo I replied to, in neither a lewd nor crude manner at all, is the one in which both the matadora and the horse were captured in an elegant and stately pose, and we're at least treated to an interesting angle of her lovely countenance. The roundness of her butt isn't the point of interest or even visible. I know you know, so don't try to deny it, that no one is, or would be first interested in the animal, or any other feature of the woman in the frame in the other photos. The compositions force it.
Now my daughter would say there's absolutely nothing wrong with that, but she also wouldn't feign indignance when a viewer didn't pretend not to notice, or that a 170 pound Nanny McPhee in their place wouldn't be absolutely ridiculous.