A breathtaking celestial mandala masterpiece featuring an intricate cosmic dance between the moon and sun, rendered in semi-realistic style with bold, flowing outlines that create a mesmerizing sense of movement. The moon section glows with ethereal blue-gray luminescence, its cratered surface textured with icy cyan highlights and deep slate shadows. The sun portion radiates with essential golden-yellow solar flares (only where necessary) surrounded by a corona of warm tans and rich browns. The