Let's keep it realistic.
http://www.imdb.com/media/rm3344734720/nm0000230
Those pictures are the worst of the worst, bad lightning, bad posture etc etc and ofcourse while they were in the worst shape.
These pictures are like those advertisements where you see a woman get much better looking in no time due to a pill or a "amazing" device, in reality in the first picture they use no make-up or just to make her look worse, bad posture, saggy clothes etc, and on the second she is smiling with professional make-up with a good picture in perfect fitting clothes.