Perhaps by now, as most people know fashion photographs are manipulated to the point of the model being a mere inspiration for the eventual image, we no longer have to classify this as "unnatural". The next step in this process is a fully computer generated "photograph", which interestingly enough seems not at all subject to the same criticisms that this type of image manipulation receives right now, simply because the "source person" was never born. Also think about make-up effects and image manipulation in movies... Gollum...CG actors in games...etc.