A minimalist luxury poster for Luoyang Peony, night theme. Composition: Large center negative space

A minimalist luxury poster for Luoyang Peony, night theme. Composition: Large center negative space for typography, clean layout. Bottom: High-end pink peonies with crystal-like transparency and pearlescent texture, elegantly arranged at the footer. Top: Distant, small silhouette of Luoyang ancient architecture with subtle golden outlines under a deep purple night sky. Atmosphere: Dreamy purple gradient background, ethereal mist, floating light particles. Style: Minimalist Chinese chic, 3D rendering, elegant and sophisticated, high resolution, soft cinematic lighting, --ar 9:16 --v 8