Ключевые слова: anthocyanins, atumn postcard, autumn, autumn coloration, autumn foliage, autumn gradient, autumn season, background, brilliant colors, brilliant red, brilliant yellows, carotenoid colors, carotenoid pigments, carotenoids, chlorophyll, circle, circle gradient, color, colored, colorful, colour, design, fall, gradient, gradient leaves, green, isolated, leaf, leaves, leaves arranged, leaves postcard, nature, peace, plant, plant colors, postcard, predominant carotenoids, rainbow, rainbow leaves, red, red leaves, row, season, september, vibrant, white background, yellow,