Create an illustration of a serene mountain scene with a setting sun, detailed pine trees, and a calm lake reflection. The design should feature sharp linework, minimalist shading, and bold outlines to ensure a crisp print. The background should be transparent, and the artwork should be created in ultra-sharp 8K resolution. The color palette should include warm colors for the sunset (oranges, pinks, and yellows) contrasted with cooler tones for the mountains and trees (greens and blues) to create a harmonious and tranquil atmosphere.