Westphal was discovered by a modeling agency in her hometown of Belo Horizonte[4] and debuted as a semi-exclusive for Chloé in the Fall Winter 2015 season, including runway and campaigns,[5][6][7] and Brandon Maxwell.
[8] On the runway she modeled for brands such as Chanel,[9][10] 3.1 Phillip Lim,[11] Kenzo x H&M,[12] Tom Ford, Sonia Rykiel,[13] Belstaff, Saks Fifth Avenue,[14] Stella McCartney,[15] and Vivienne Westwood.
[17][18] She can be seen alongside models like Adwoa Aboah, Maria Borges, and Issa Lish in Sephora's Let's Beauty Together campaign.
[19] Westphal has been frequently deemed a future supermodel and is called "the next Gisele Bündchen" by Brazilian media and Vogue.
[26] Before modeling, she was studying law in Minas Gerais, her home state.