The most common mistake with wall art is going too small. A quick rule: your art (or group of prints) should span about two-thirds of the furniture beneath it. Above a sofa that usually means 70×100 cm or a pair of 50×70s; above a desk or dresser, 40×50 or 50×70 works beautifully.
For shelves and gallery walls, mix A4 and 30×40 — the variety keeps the arrangement lively. In hallways, tall narrow sizes like 40×50 and 50×70 hung at eye level (center around 145 cm from the floor) feel intentional.
Still unsure? Order the size up. Large art almost always looks more expensive, and our 13-size range lets you match any wall from A5 to a full 100×140 cm statement.