Genoveva Filipovic, For Negative Press, 2013, concrete, photograph, mixed media on canvas, 40 x 50 cm, 15 3/4 x 19 3/4 ins. And Genoveva Filipovic, Untitled, 2013, Spray paint on canvas, 80 x 100 cm, 31 1/2 x 39 3/8 ins Courtesy Vilma Gold, London. Photo: Lewis Ronald