Ключевые слова: abstract, backgrounds, beautiful, beauty, blue, bright, change, cirrus, cloud, cloudscape, cloudy, day, dramatic, energy, environment, environmental, fluffy, freedom, heaven, horizontal, illuminated, layer, light, low, luminosity, natural, nature, nobody, outdoors, overcast, ozone, peace, phenomenon, power, scene, scenics, season, sky, solar, space, stratosphere, sun, sunbeam, sunlight, tranquil, up, vibrant, view, weather, white,