Just a day before the live finale of the fourth cycle, it was confirmed that van der Vliet would be a finalist, after being in the hospital, suffering from Crohn's disease.

She walked for Celine, Dries van Noten, Herve Leger, Karl Lagerfeld, Kenzo, Loewe, Nina Ricci, Sonia Rykiel, Sophia Kokosalaki, Valentino and Yves Saint Laurent.

After her successful debut, she appeared in editorials for a lot of blue chip magazines, including Numéro, Interview, W, Allure, French Elle, and Italian, Japanese, British, Chinese, Russian, German, and American Vogue.

For the Fall 2010 season, she walked a total of 50 shows, including Balenciaga, Prada, Chanel, Louis Vuitton, Hermès, Marc Jacobs, Givenchy, Dolce & Gabbana and Valentino.

Despite being sick, Fall 2011 was another great season for her, walking in 31 high-profile shows such as Givenchy, Calvin Klein, Dolce & Gabbana, Burberry Prorsum, Valentino, Alexander McQueen, Giorgio Armani and Chanel.