abstract architectural backdrop background barrier brick brick-wall bricks brickwork cement colored coloring colors coloured 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-built appearance arid Australia Australian blue brown bush central central-Australia contrast contrasting descriptive desert-country desert-region distance distant drought dry dry-brown-land far foliage gravel ground hot inland light outback outcrops rocks rocky rough rugged scrub shrubbery sky sunlight sunshine terrain trees vegetation appearances Cacti cactus clumps clusters colorful colourful display edge edges flora frilled frills garden-display garden-plants green greenery irregular leaves ornamental perennials plants pointed protection ribbed ribbing ribs shape shapes sharp short-spikes small-spines spikes spines spiny succulents unusual variations variety architecture basic color colour balcony Rendered windows corner clean