A child dressed as a cat takes part in the Children's Halloween day parade at Washington Square Park in the Manhattan borough of New York October 31, 2015. (Photo by Carlo Allegri/Reuters)

A dog dressed in a costume takes part in the Pet's Halloween Day parade at El Olivar Park in San Isidro, Lima, October 31, 2015. (Photo by Mariana Bazo/Reuters)

A model presents a creation during the 2015 Victoria's Secret Fashion Show in New York, November 10, 2015. (Photo by Lucas Jackson/Reuters)

A model presents a creation during the 2015 Victoria's Secret Fashion Show in New York, November 10, 2015. (Photo by Lucas Jackson/Reuters)

Gianluca Pardelli is something of an expert on markets. For the past two years, he’s travelled across eastern Europe, from Azerbaijan to Uzbekistan, Moldova to Georgia, photographing them. Here: Telavi, Georgia. (Photo by Gianluca Pardelli)

Mary Ellen Mark was an American photographer known for her photojournalism / documentary photography, portraiture, and advertising photography. She photographed people who were "away from mainstream society and toward its more interesting, often troubled fringes". Here: Amanda and her cousin Amy, Valdese, North Carolina, 1990. (Photo by Mary Ellen Mark)

Vintage Newton, a pop-up exhibition of Helmut Newton prints from 1974-1984, opens in west London at the ONGallery. These prints, which feature Charlotte Rampling and Elsa Peretti, were produced from a series of transparencies that he considered his most provocative and important. Here: Saddle II. (Photo by Helmut Newton)

These poignant portraits look to shine awareness on the plight of some of the world’s most endangered ecosystems and species of wildlife. The images combine animals, art and celebrity, with Asia's top models posing with the likes of rhinos, giraffes, leopards and marine life. Here: Mikki Yao with an Asian Elephant. (Photo by Sean Lee-Davies/Caters News)