Ключевые слова: abstract, abstract art, aged, ancient, backdrop, black, brown, closeup, contrast, design, detail, durable, earth science, earth tones, earthy, environmental, erosion, formation, foundation, geological, geology, history, layered, lines, macro, material, mineral, natural pattern, nature, organic, outdoors, pattern, rock, rough, rugged, sedimentary, stability, stone, stratification, strength, stripes, structured, surface, texture, textured, timeless, unique, variation, waves, wavy,