The project is billed as the world’s largest open-air art museum and was led by Spanish artist Okuda San Miguel, who is known for brightly coloured geometric images that can be seen on streets around the world. His mural in Calzada de Calatrava (Pedro Almodóvar’s hometown) depicts characters from the director’s films, as well as references to local history and characters – real and fictional – such as the Knights Templar and Don Quixote.

Photograph: Elchino Po