abstract appearance background brown colored coloring colors coloured colouring colours conglomerate contours contrast contrasts cracks fissures flaws grit gritty layered layers levels light lines mica natural rock rock-face rockface rocky rough rugged shade shadows shape shapes silicate stone strata stratum sunlight sunny sunshine surfaces texture textured textures veins wallpaper shaped surface angles Australian backdrop color colour contrasting cool decorative density distinctive elements external ferns flora flowers foliage fronds garden green greenery horticultural horticulture leaves nature patterns peace peaceful perspectives plants shrubbery spread spreading variation variety vegetation white-flowers