age aged arrow decay direction grunge Jerome left one way paint point sign surface texture traffic ahead anas-superciliosa aquatic-bird Australian bird black-eye-stripe brown-duck chicks common dark-brown duck ducklings fauna fowl grey-duck guidance guiding lake lead leading mother omnivore omnivorous Pacific-black-duck protection protective reflecting reflections ripples rippling sunlight sunshine surfaces swimming water waterbird waterfowl wetlands widespread wild-duck background crack cracked cracks old random wear white worn ceramic ceramics crackle crackle glaze craft craquelure glazing pottery stoneware vase fresh green leaf leaf texture leaves light natural nature rhubarb rib shade vein 3D-columns abstract angled angles artwork black color colored colour coloured column-squares columns contrasting cubes dark decorative design details distinctive edges graphic-design gray grey interconnected interlinked lines linked modern painted painting patterns perspectives shaped shapes stacked-cubes style textured textures thick thin wallpaper weave woven cover iron metal non-skid oxide plate ridges rust San Francisco sidewalk urban acidic antibacterial antioxidants astringent bowl citric-acid citrus citrus-fruit citrus-limon cleaning cleaning-agent cooking culinary ellipsoidal food fruit health-benefits healthy inner-flesh juice lemon lemons limonin limonoids medicinal oval pattern peel pulp raw refreshing rind Segmented segments shape sour tablecloth tart taste yellow zest