'They have perfect dark skin': The African nation home to fashion's favourite models

Wearing an understated but chic outfit, flowing braids and a dewy, make-up free face, Arop Akol looks like your typical off-duty model.
She sinks into the sofa at the offices of her UK agency, First Model Management, and details the burgeoning career that has seen her walk runways for luxury brands in London and Paris.
"I had been watching modelling online since I was a child at the age of 11," Akol, now in her early twenties, tells the BBC.
In the last three years, she has been streamed across the world while modelling, even sharing a runway with Naomi Campbell at an Off-White show.
Travelling for work can get lonely, but Akol is constantly bumping into models from her birth country - the lush, but troubled South Sudan.
"South Sudanese people have become very well known for their beauty," says Akol, who has high cheekbones, rich, dark skin and stands 5ft 10in tall.
Flick through a fashion magazine or scan footage of a runway show and you will see Akol's point - models born and raised in South Sudan, or those from the country's sizable diaspora, are everywhere.
They range from up-and-comers, like Akol, to supermodels like Anok Yai, Adut Akech and Alek Wek.
After being scouted in a London car park in 1995, Wek was one of the very first South Sudanese models to find global success . She has since appeared on numerous Vogue covers and modelled for the likes of Dior and Louis Vuitton.

And the popularity of South Sudanese models shows no signs of waning - leading industry platform Models.com compiles an annual list of modelling's top 50 "future stars" and in its latest selection, one in five models have South Sudanese heritage.
Elsewhere, Vogue featured four South Sudanese models in its article about the "11 young models set to storm the catwalks in 2025".
"The expectation of what a model should be - most of the South Sudanese models have it," says Dawson Deng, who runs South Sudan Fashion Week in the country's capital, Juba, with fellow ex-model Trisha Nyachak.
"They have the perfect, dark skin. They have the melanin. They have the height."
Lucia Janosova, a casting agent at First Model Management, tells the BBC: "Of course they are beautiful... beautiful skin, the height."
However, she says she is unsure exactly why fashion brands seek out South Sudanese models over other nationalities.
"I'm not able to tell you because there are lots of girls who are also beautiful and they are from Mozambique, or Nigeria, or different countries, right":[]}