architectural backdrop background barrier brick brick-wall bricks brickwork cement coloring colors colouring colours constructed exterior external firm linear lines mortar perspective perspectives rectangular secure security smooth solid standard strength strong style surface surfaced surfaces texture textured textures traditional-brick-wall variation varied various wall walled wallpaper well-buil backlight backlighting forest forests lake lakes summer sun sunset clouds colour rainbow sky blue bobbled painted rough stippled gray grey golden mist quiet serene solitude sunrise tree animal Australia beak bird feather Heron white