Ключевые слова: background, beautiful, big, birch, blue, branch, bright, brown, colorful, concept, eco, ecology, environment, foliage, forest, fresh, green, growth, landscape, leaf, leaves, light, looking up, natural, nature, oak, outdoor, outdoors, park, plant, serene, shine, sky, spring, stem, structure, summer, sun, sunlight, sunny, tall, top, travel, tree, trees, trunk, twigs, view, wood, woods,