bicolored foliage bicoloured foliage brown colored coloring colors coloured colouring colours contrast contrasting different foliage glossy green leaves light mature leaves plants shadows shiny shrub shrubbery sunlight sunshine variations vegetation young leaves Alice Springs Australia bush central Australia decoration decorative desert-country desert-region display dry garden gravel hot inland outback park ridge rocks rocky rough rugged scrub terrain textures trees branches central-Australia dead drought drought-stricken grass height high arid bushland formations outcrop rock-formations