From Wikipedia:

Alek Wek is a South Sudanese–British model and designer who began her fashion career at the age of 18 in 1995. She has been hailed for her influence on the perception of beauty in the fashion industry. She is from the Dinka ethnic group in South Sudan, but fled to Britain in 1991 to escape the civil war in Sudan. In 2015, she was listed as one of BBC's 100 Women.