Every person wants to be unique and recognizable. In fashion industry, it is both good and bad. If you have ordinary looks you'll get lots of work especially on the runway where clothes are important rather than girls who model those. But if you have something that differentiates you from all the others, it can be a key to world success.
Remember Cindy Crawford and her mole? The supermodel once said that she wouldn't have been so called-for as a model unless her mole was her trademark. Everyone knows Cindy Crawford for that mole.
To hear more about this phenomenon, read more.
Lara Stone and Georgia May Jagger seem to know this pretty well as they are in no hurry to get rid of those gaps between their front teeth. People spot them in fashion magazines and remember their faces immediately. That's great on the one hand and really disappointing on the other. While the positive side is quite clear, the negative one hides in the fact that the majority of people just memorize the face and the recognizable feature, but hardly try to see beyond. They just don't take the girls seriously.
Nevertheless, this isn't what can stop either Lara or Georgia. Lara Stone's latest achievement is becoming the face of Calvin Klein while Georgia May Jagger has long been named Karl Lagerfeld's favorite model.
Once you get recognized you have to work hard to convince people you have something more than your looks to show, that you have a personality that can be interesting.