Ключевые слова: abstract, air, atmosphere, backdrop, background, beautiful, blue, bright, clean, clear, climate, cloud, clouds, cloudscape, cloudy, color, concept, day, design, ecology, element, empty, environment, fluffy, freedom, heaven, high, horizontal, landscape, light, natural, nature, nobody, open, outdoor, pattern, season, single, sky, soft, space, spring, summer, sunny, symbol, tranquil, view, weather, white, wind,