angles arid Australia barren bedrock blue-sky brown bush bushland clouds crest drought drought-stricken dry geological-formation geology height high hill hot inland isolated landscape outback outcrops plants remote ridge rocks rocky rough rugged scrub shadows shapes shrubbery shrubs sky slopes sparse stone stones sunlight sunshine terrain textures trees vegetation backdrop background beach coast coastal coastline colors colours conservation conserve conserving contrast contrasting cultivation dune-flora dunes environment environmental flora foliage grass grasses green greenery growing growth leafy leaves levels light natural nature ocean ocean-edge ocean-waterline path salt-resistant sand sand-dunes tides track water waterline color colored colour coloured layers sea seashore seaside shade shore shoreline Sizes stony surface surfaces surfacing textured tidal tide varied variety abstract appearance Australian blue central central-Australia coloring colouring descriptive desert-country desert-region distance distant dry-brown-land far gravel ground perspective perspectives