Somewhere between Matisse’s cut-paper work and 1960s screen printing, this stacked pattern collage refuses to behave. Put it up and a flat, quiet wall suddenly has rhythm blue, orange, pink and olive green stacked like fabric samples on a table. It carries a plain hallway or a slightly bare living-room wall on its own, and it lifts a kids’ room without tipping into cartoon. Hang it at eye level on an off-white or pale blue wall, above a low sideboard, a bench or a desk. Keep the furnishings plain: painted timber, cane, cotton in one colour, a couple of white ceramics. What not to do is crowd it skip patterned wallpaper, busy rugs and other multi-colour prints nearby, or the bands lose their punch. On premium fine-art paper the flat colour blocks and printed texture stay crisp.