Exhibition of the week Carolee Schneemann Orgiastic meditations on enfleshment by this outrageous pioneer of performance and body art. Barbican, London, from 8 September until 8 January Also showing Visions of Ancient Egypt Chris Ofili, David Hockney and more get inspired by the Pharaohs. Sainsbury Centre, Norwich, from 3 September until 1 January The Lost King: Imagining Richard III Art and armour help to bring 15th-century England to life, including Paul Delaroche’s painting of the doomed nephews of Richard III. Wallace Collection, London, from 7 September until 8 January Marcus Coates For this Artangel project Coates has collaborated with five people who have experienced psychosis. Churchill Gardens Estate, London, from 4 September until 30 October Sturtevant This subversive 1960s artist who remade other artists’ work is now regarded as a pioneer of postmodernism. Thaddaeus Ropac, London from 8 September until 3 October Image of the week Treefrog pool party by Brandon Güell For this photograh, highly commended in the wildlife photographer of the year contest, Güell waded chest-deep into murky water in the Osa peninsula where a gathering of male gliding treefrogs were calling. At dawn thousands of females arrived at the pool to mate and lay their eggs on overhanging palm fronds. Here, unmated males search for females to mate with. See more of the best work in this year’s contest here What we learned Canadian city pulls huge bronze bison sculpture amid concerns over image of colonialism The brutal sale of Keith Haring’s Radiant Baby reflects a genius cut short An Instagram meme of ‘four lads in jeans’ has become a statue in Birmingham Antiquities shattered in the Beirut port explosion have been painstakingly reconstructed Lim Heng Swee has been creating digital artworks of cats camouflaged as landscapes Guardian photographer Linda Nylind has found a subersive side to Southwold on the Suffolk coast Photographers have chosen their favourite shots of Britain’s departing prime minister Yinka Ilori’s patterns and architectural designs to get their own show at London Design Museum The Natural History Museum revealed some of this year’s best wildlife photography Masterpiece of the week Melancholy III by Edvard Munch, 1902 This is one of Munch’s gentler works. It savours gloom like like a fine wine. We don’t know why the young man sits in sad introspection by the shore, contemplating those dark Nordic waters. But there’s a philosophical acceptance to his pose and perhaps a hint of creativity. For this is a portrait of “melancholy”, not madness. The way the youth rests his head on his hand repeats the conventional pose of melancholy in medieval and Renaissance art - most famously Albrecht Dürer’s engraving Melencolia I. Dürer’s image of Melancholia as a winged “genius” surrounded by tools of sculpture and architecture identifies this mood with the visionary darkness of the artist. This is Munch’s own acknowledgment that his art is born of inner suffering. British Museum, London Don’t forget To follow us on Twitter: @GdnArtandDesign. Sign up to the Art Weekly newsletter If you don’t already receive our regular roundup of art and design news via email, please sign up here. Get in Touch If you have any questions or comments about any of our newsletters please email newsletters@theguardian.com