abstract appearance background brown colored coloring colors coloured colouring colours contours contrast contrasts cracks fissures flaws layers levels light lines natural ribbons rock rock-face rockface rough rugged shade shades of color shades of colour stone strata stratum surface surfaces texture textured textures veins wallpaper close-up Dirt feel garden garden path gray grey path pebble path pebbles river rocks rocks rounded smooth smoothed Soil varied angles garden-wall shades-of-color shades-of-colour shape shaped shapes wall