[2] She has walked shows for dozens of fashion brands such as Fendi, Christian Dior, Alexander McQueen, Marc Jacobs, Michael Kors, Calvin Klein, Oscar de la Renta, Hermès, Jean Paul Gaultier, Dolce & Gabbana, Yves Saint Laurent, Ralph Lauren, and Versace.

[8] Gustavsson has been in the magazines Elle, W, Numéro, American, Italian, French, British, German and Japanese Vogue, L'Officiel, Crash, and others.

[2] She has appeared in advertising campaigns for Marc Jacobs, Jill Stuart, Anna Sui,[9] H&M, Max Mara, Tiger of Sweden and Prada.

[12][failed verification] She has also expressed an interest in an acting career, stating in 2014 that she would like to move into theatre or film and auditioned for the role of Rey for Star Wars: The Force Awakens but did not get the part.

[13][14] In 2019, Gustavsson appeared in the first season of the fantasy drama television series The Witcher as Visenna, the mother of protagonist Geralt of Rivia.