This artist, the subject of the 2021 biography Revelations, received a radiograph of Michael Sadler’s skull in response to a painting of a wispy, white figure splaying its arms on a field of black. This former rugmaker worked from a huge stock of photos that included X-rays, Muybridge prints, and Matthias Grünewald (“GREW-nuh-valt”) reproductions. This artist suppressed most of his paintings that predated a bright orange triptych depicting (10[1])a set of limbless Eumenides. This artist copied the mouth of a nurse from Battleship Potemkin for a series that includes an entry in which the subject is flanked by raw meat. This painter of Three Studies for Figures at the Base of a Crucifixion created several variations on a portrait by Diego Velázquez. For 10 points, what British artist painted screaming popes? ■END■