Eyewitness: Penalty by Mandy Barker

Photographer Mandy Barker's online appeal for old footballs washed up on the world's beaches resulted in Penalty, a series of four images designed to highlight the impact of plastic accumulating in the world's oceans. The balls were photographed as they were found, unwashed and unaltered, some containing seawater, others drained. Some were home to creatures, including a shrew, an ants' nest and a family of crabs, while others showed signs of having been bitten by turtles and fish Illustration: Mandy Barker