Ключевые слова: alone, autumn, background, big, blue, branch, cloud, cloudy, country, ecology, environment, fall, field, foliage, forest, fresh, grass, green, high, landscape, large, lawn, leaf, lonely, lush, meadow, natural, nature, old, overcast, park, peaceful, plant, poplar, populus nigra, scene, serene, sky, solitary, stem, strength, strong, symbol, tall, timber, tree, trunk, wood, yellow,