This is the same model, one picture taken in her "natural" state and one "post production." I grabbed the pictures from a video that shows the process models go through (hint: lots of Photoshop) to look the way they do. The tag at the end of the video reads, "No wonder our perception of beauty is distorted."
I couldn't agree more. It comes as no surprise that girls get depressed when they see something fake, and unattainable, being promoted as a standard. This is all part of Dove's Campaign for Real Beauty. Check out their website, and the video, by clicking here.
On a professional note, I think the whole campaign is an excellent example of advertising being used to further a worthy cause while also promoting a brand.