First glance: hot pink and coral. Second glance: the little ghost doing something smarter. Painted in the loose, sun-soaked spirit of Matisse’s open-window pictures, this piece swaps the usual flowers for a quiet ghost peering out at a blue-grey sea. It warms up a cool wall and adds a bit of wit to a room that takes itself a touch too seriously. Hang it in a living room, hallway or kids’ room where you want colour and a smile. Pair with warm woods, rattan, cane, linen and stoneware in coral or cream. Skip the icy blue-grey schemes and the very formal traditional rooms the colour wants to play.