Ключевые слова: abstract, abstract background, architectural, architecture, art, background, black, color, concept, construction, decoration, design, detail, dirty, effect, element, empty, exterior, floor, floor texture, ground, light, line, melancholy, nobody, outdoor, pattern, rough, shadow, shadow abstract, shadow on ground, shape, silhouette, steel, structure, style, sunlight, surface, texture, urban, wall,