Calm lake with mirror-like reflection, peaceful mood, surrounded by lush green trees and majestic mountains in the background, with a few birds flying overhead, serene atmosphere, warm sunlight casting a gentle glow on the ripples of the lake, reflections of trees and mountains perfectly mirrored on the lake's surface, creating a sense of perfect symmetry and harmony, with a soft, misty haze in the distance, and a few leaves or twigs gently floating on the lake's surface, emphasizing the tranquility and stillness of the scene.