Ключевые слова: atmosphere, atmospheric, background, beautiful, beauty, blue, cirrus, cloud, color, colorful, day, delicate, diffraction, droplet, effect, estonia, hope, iridescence, iridescent, irisation, light, nacreous, natural, nature, optic, pearl, phenomenon, pileus, rainbow, rare, ray, reflection, refraction, shine, sky, spectacle, spectrum, spirit, spiritual, summer, sun, sunlight, sunny, visual, wave, weather, white,