Ключевые слова: abstract, art, back lit, backgrounds, beautiful, beauty, beauty in nature, blue, built structure, chemical plant, chimney, cloud, cloudscape, creativity, dark, dusk, environment, factory, fine art, flood, flooding, fumes, industry, landscape, nature, orange, outdoors, pollution, reflection, rhine, river, riverbank, riverbed, romantic sky, scenics, season, silhouette, sky, smog, smoke, smoke stack, steam, sunlight, sunset, swamping, tree, twilight, water,