Ключевые слова: abstract, air, atmosphere, background, blue, bright, clean, clear, climate, cloud, clouds, cloudscape, color, day, directly, empty, environment, environmental, fluffy, freedom, heaven, high, horizon, horizontal, light, natural, nature, outdoors, ozone, puffy, relax, scenic, scenics, sea, serene, skies, sky, softness, solar, son, space, stratosphere, summer, sunlight, sunny, sunshine, tranquil, view, weather, white,