Ключевые слова: abstract, air, atmosphere, background, blue, cloud, clouds, cloudscape, cloudy, color, cumulus, dark, dawn, day, drawing, dusk, evening, fog, heaven, horizon, landscape, light, line, morning, nature, night, painting, reflection, sea, sketch, sky, smoke, space, storm, sun, sunlight, sunrise, sunset, text, texture, wave, weather, white, wind,