We like a dinosaur study best when it comes with a little abrasion. The fine brown linework here has the scratch of an old museum plate, and the flat teal blue panel behind it drags the whole thing into the present. Hung up, it gives a room a focal point that reads as clever rather than childish, so it keeps working long after the dinosaur phase ends. Best on a wall you pass often: above a low bookshelf, beside a desk, or as a single anchor in a hallway. Pair it with dark wood, painted plywood, canvas or denim seating and teal-toned paintwork. Skip busy patterned wallpaper behind it, and don’t crowd it with cartoon prints. As a canvas the flat teal block holds its edge and needs no glazing to shine through.