abstract appearance background brown colored coloring colors coloured colouring colours conglomerate contours contrast contrasts cracks fissures flaws grit gritty layered layers levels light lines natural rock rock-face rockface rocky rough rugged shade shadows shape shaped shapes stone strata stratum sunlight sunny sunshine surface surfaces texture textured textures veins wallpaper abundance abundant backdrop cleared contrasting dense density direction foliage green greenery growth heavy jungle leafy leaves path paved pavers plants shrubbery thick track trail trees variations variety vegetation way-through well-maintained mica silicate