Astronaut in a Music Box: Concept Art Diorama

An ornate brass music box with a glass lid opens to reveal a hyper-detailed diorama: a lone astronaut in a pristine white suit stands on a cratered lunar surface inside the tiny world. Soft starlight and a gentle nebula glow illuminate the scene, with distant galaxies visible through the glass backdrop. Delicate gears and the wind-up mechanism are visible at the base, hinting at motion. The lid and outer box are decorated with celestial engravings and filigree. The image is rendered as concept art in a digital painting style, with cinematic lighting, high-detail textures, and a dreamy, surreal atmosphere. The composition centers the astronaut, the box frame acting as a window into another cosmos, with a color palette of cobalt blue, silver, bronze, and white, and subtle reflections on the glass.