The 24-year-old model - who was diagnosed with the skin condition vitiligo at the age of four - hopes her success will encourage other people to follow their dreams.
Winnie - who will appear in the upcoming Sports Illustrated Swimsuit Issue - said: "I really hope that people who deal with all types of skin conditions, especially vitiligo, of course, can see that there's absolutely no shame in showing off as much of our bodies and sexuality as we would like to, just like any other person can.
Winnie will appear in the upcoming Sports Illustrated Swimsuit Issue. (Picture: Instagram)
"And I hope that inspires more women, and men, to carve their space in the modelling industry and be proud of our bodies. I know in my heart that I will not the last model with vitiligo to be featured [in the Sports Illustrated Swimsuit Issue].
"We need to make sure that all bodies are celebrated and shown in a positive way - no matter what shape, condition, or colour it may be."
Winnie cited Naomi Campbell and Tyra Banks as two of her biggest inspirations.
Supermodel Naomi Campbell. (Instagram)
She also suggested Kate Upton is the "most iconic SI model" in history.
Winnie told People: "Naomi Campbell and Tyra Banks have been huge influences and even mentors of mine, especially as models of colour.
"They helped paved the way for our beauty to be celebrated. And of course, how can I forget the gorgeous Kate Upton, perhaps the most iconic SI model."