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 appearances arched architectural architecture arranged arrangements buildings curtain curtains dark decorated decorative designed Designs detailed distinctive elements exterior external fabric frame framed glass heights heritage high linear ornamental patterns quality rounded structures style supports window window-frame