Shown in its entirety for the first time in London, Iman Issa began her series “Proxies, with a Life of their Own,” in 2019, with the shape of a head. Every iteration of the work since then has involved the same head, only stretched out, broken open, or cut in half. Issa wanted the original shape to be exactly the same every time, so she drew it first and had it 3-D printed. Then, she would take the heads to a paint studio, where they were covered with acrylic in white or black but never a color. The resulting works...