Fletcher is a British artist based in London, England. He is predominantly known for his large-scale figurative pieces, mostly in oil and usually depicting movement in the form of dance; ranging from contemporary dance through to classical ballet and flamenco. His work is housed in both private and corporate collections, mostly in the United Kingdom and Japan. He has painted several key figures in the world of dance, notably Royal Ballet principals Darcey Bussell, Sarah Lamb, Miyako Yoshida and Alina Cojocaru, and the flamenco performers, Joaquín Cortés, Eva Yerbabuena and Sara Baras.
He was born in Hertfordshire, England and studied Illustration at Kingston University (then known as Kingston Polytechnic), graduating with Honours in 1989. During his studies there and immediately following graduation, Sibthorp developed a keen interest in exploring the idea of movement and its subsequent effect on the human form, usually experimenting in oil. His key influences at that time were the British painters Francis Bacon and Frank Auerbach, as well as artists Gustav Klimt and Edgar Degas.