Aerial view of a serene river flowing gently through a lush forest, with vibrant green tones of foliage and blue tones of water, showcasing a natural landscape with trees of varying heights and densities, and a meandering river that reflects the sky's colors, under a bright sunny sky with a few puffy white clouds, capturing the beauty of nature in a realistic and detailed style, with the river flowing from the top of the image to the bottom, and the forest stretching out to the edges of the frame.