Flat illustration, Oriental fantasy style high-end city poster design, vertical 9:16 composition, the overall adopts a diagonal + S-shaped flowing composition, extending from the bottom left to the top right, the picture uses deep black as the background, gradually changing from top to bottom to intense dark red, forming a strong cold-warm contrast and spatial depth, the background has a faint stardust and grainy texture. In the center of the picture, a golden flowing energy line winds through like a flame, extending from the bottom to the top, having a fluid texture, particle light effects and gradient highlights, with subtle energy debris and volumetric light in some areas. Guangzhou city landmark building complexes emerge layer by layer in the golden flowing light: Canton Tower is the visual core, with a prominent proportion, surrounded by the integration of Zhujiang New Town high-rise buildings, Liede Bridge and modern and Lingnan architectural elements, the buildings are expressed using "fine line drawing + golden glowing blocks", clear outlines and rich details, set off by the golden halo, they seem to float in the void, forming a surreal spatial hierarchy, the distant view is slightly fogged to enhance the sense of depth. At the bottom of the picture is an oriental white-haired female figure, long hair fluttering, like smoke and mist, naturally connecting and gradually blending with the golden flowing light, the hair is translucent with a gradient light sense, graceful posture, eyes slightly closed, serene expression, holding a bunch of colorful fresh flowers in her arms, interspersed with faint light particles and starlight effects among the flowers, symbolizing the spiritual connection between human and urban energy, character details are moderately simplified to highlight the overall sense of design. Light and shadow are focused on the golden streamlines, buildings and character outlines, forming a strong light-dark contrast and visual focus, the overall atmosphere is grand, mysterious, with an Oriental mythological artistic conception and a slight healing sense. The color uses black and dark red as the base, highlighted gilded gold as the main visual emphasis, the gold has rich light and dark layers, supplemented by small areas of high-saturation bouquet color embellishments, the overall is advanced and restrained. Page text and picture integrated typography: large Song typeface characters "Guangzhou·China" centered at the top, small characters "2026/04/20" below, small characters "LIYUE" further below, the text uses light gold or soft warm white, unifying with the overall light and shadow. High-quality details, cinematic light and shadow performance, rich volumetric light and particle details, clean picture without noise, ultra-high definition 8K resolution, commercial-grade poster texture.
