Train in a Music Box: Digital Dreamscape

Ultra-detailed digital art of a tiny steam locomotive inside an ornate antique music box. The lid is open to reveal a miniature diorama: a circular brass-tracked landscape on a velvet-red bed, a wind-up key and brass gears visible at the side. The train chugs around, releasing colored smoke and floating musical notes that shimmer with pastel iridescence. Soft, warm gold and cool blue lighting bath the scene, with painterly textures, glass reflections, and delicate trees and lampposts along the track. The mood is whimsical, dreamlike, and cinematic.