I've been asking myself that since 1994 and I still don't have a good answer. I can understand why men like a picture like this, but I am still figuring out why women like these pictures. I have lots of answers for why a woman might like a picture like this, but I can't quite get the big picture of it. Anyway, both men and women really seem to like pretty women who aren't wearing much.
People like to think that they are far above their instincts, but my experience is that people use their minds to justify what their instincts tell them to do.
I should add that I am not really aying anything about this particular picture. I'll say now that the model is pretty and the execution is good. My comment is really directed into why people and especially why women like to see other pretty women who are not wearing much. I can understand that men have an instinctive compulsion to chase after fertile women, but why are women so interested in the same? Is it some sort of competition? Is it the desire to learn from experts? Is it the the hope that some of the magic will rub off on them? Is it some sort of female group bonding? Could it be that instincts drive women together to attract men? All I know is that I have observed that both men and women like these kind of pictures.