We're a business created to provide a service for our moderately conservative paying customers, and we're wary that some customers will be uncomfortable with transgender models appearing on our site (so much so as to stop paying for our service entirely). We're willing to lose some customers over this - we believe that sex is a many varied and beautiful thing - but we're not going to risk our entire business on it.
While we're primarily seeking models who were assigned female at birth, since 2018 we are trialling including some models who were assigned male at birth but have transitioned to female and also undergone sex reassignment surgery.
Transgender model applicants will be subject to the same requirements we have for models who were assigned female at birth (only around 10% of those get accepted), and so transgender models may not be accepted for reasons regardless of their transgender-ness.