I play Warhammer with my friends and we frequently take photos of our games. We've spent a lot of time and effort to paint miniatures and scenery, however the photos are often rudely backdropped by someone's kitchen.
The photos done by the Games Workshop studio such as the one below often have backdrops so the battles appear to go on forever.
What is the most cost effective way of recreating this effect at home - ideally using iPhone or iPad photo editing software?