There's a reason Matisse kept returning to the goldfish bowl; rooms still respond. The dark green leaves, orange fish and black cat give a quiet room something to look at without crowding it.
Put it up and the room feels a little more lived-in. The cream border calms the brighter colours down, so it reads as cheerful rather than loud. It pulls warmth out of oak, rattan and linen, and gives a pale wall a clear focal point.
It works above a sideboard, a small sofa, a reading chair or a kitchen counter. Eye-level is best — this is a poster that rewards a closer look at the brushwork.
Pair it with warm woods, cream upholstery, a stoneware vase and one piece of greenery. A black or oak frame both work; black sharpens the cat, oak softens the whole thing.
What not to do: don't crowd it with other busy patterned art on the same wall. It's already doing the talking. Printed on thick fine-art paper with a soft matte finish.