Ключевые слова: abstract, alkali, architecture, backdrop, background, blank, building, cement, closeup, colour, concrete, construction, cracked, design, detail, dirty, floor, frame, gray, grey, grunge, hard, industrial, lichen, material, nobody, old, pattern, plaster, retro, rock, rough, seamless, solid, stone, structure, surface, texture, textured, urban, vintage, wall, weathered,