Choose from a range of white wall murals. The colour of the wallpaper should not only match your interior, but should also be pleasing to you. You also need to think about whether you will match your interior to darker and colder colours or rather to lighter, warmer ones. Dark colours on wallpaper will make the space visually smaller, so they are more suited to larger rooms, whereas light colours will make the space visually larger, so they are ideal for smaller rooms.