Colorful crowd at the military parade in Pyongyang, North Korea by Teun Janssen

Press 'View in AR'. Then point your Android phone or tablet at the wall where you want the artwork and follow the instructions on your screen.

Is the artwork not in the right place? Drag it across the screen with your finger to where you want it.

Press 'View in AR'. Then point your iPhone or iPad at the wall where you want the artwork and follow the instructions on your screen.

Is the artwork not in the right place? Drag it across the screen with your finger to where you want it.

• Point your camera at the floor or a piece of furniture first, then move it slowly up towards the wall. A bare white wall is hard for your phone to recognise.
• Move your phone gently from side to side. Holding it still or waving it around quickly does not help.
• Make sure there is enough light. In a dark room your phone has nothing to lock onto.
• The artwork appears at its true size, so you cannot scale it in AR. Want a different size? Close AR and pick the size on the product page.
• Still nothing? Open this page in Chrome or Safari. AR does not work in the browser of apps such as Instagram or Facebook.