There is a better one of a swimsuit model on that same site. The change is drastic, but she still looks real. I wonder how many of the models we lust after are not as sexy as they appear.
That particular picture is overdone, but there isn't a doubt in my mind that models aren't just airbrushed to have smoother skin, but to be thinner, as well. Didn't a magazine airbrush Kate Winslet thinner, much to her chagrin? Sick.