Lauren Wade at TakePart re-imagined famous classic paintings to fit today's "standards" by Photoshopping the subjects in the paintings to look like magazine cover models.
That basically means: impossibly skinny waists, thinner arms, basically no joy of fat whatsoever but still have bigger breasts somehow. It's quite embarrassing to see how starved our definition of beauty is.
You can see more of her clever comparisons of the past and present here. I don't know if a NSFW tag is necessary since it's all classic artistic nude paintings but whatever. Deal with it.
Botticelli's Birth of Venus from 1486
Raphael's Three Graces (1505)