【Poster theme】: {enter the theme} 【Main Chinese title】: {enter the title} 【English title】: {enter the English name} 【Core visual concept】: {for example, a giant whale carrying a book harbor, a tea leaf transforming into tea-covered mountains, or an umbrella supporting a city} 【Main visual elements】: {architecture, nature, people, plants, objects, etc.} 【Color palette】: {primary color, supporting colors, and accent color} 【Event information】: {date, location, subtitle, event details, etc.} 【Aspect ratio】: 9:16 Create an art poster for a cultural event with a retro East Asian hand-drawn aesthetic, combining the visual language of independent cultural exhibition posters from Japan and Taiwan, vintage picture-book illustration, traditional flat-printing techniques, and experimental editorial design. Visual concept and composition Build an imaginative miniature world around the theme. Use shifts in scale, fused forms, or surreal combinations to turn everyday objects, architecture, plants, natural landscapes, and people into a distinctive and cohesive visual metaphor. The main subject must have a striking large-scale form and a clearly defined silhouette. Organize the composition through surrounding, interweaving, overlapping, partially corner-cropped elements, or winding paths. Fill the main subject with rich and meaningful details of everyday life while preserving natural negative space around it. The image should have strong graphic recognition from a distance and reveal interesting stories when viewed up close. Hand-drawn style and color Use free, deliberately imperfect hand-drawn ink lines combined with two-dimensional flat fills, selectively detailed linework, and artistically stylized forms. Lines should vary naturally in thickness. Architecture, trees, and people may feature moderate exaggeration, asymmetry, and a slightly naive quality. Give some forms dark outlines while constructing others directly from complete blocks of color, avoiding mechanical neatness. Use clean, warm, light ivory-beige paper as the background, paired with retro natural colors such as botanical green, lake blue-green, terracotta orange, mustard yellow, and charcoal black. Choose two to three primary colors for each poster and use one vivid accent color to establish a visual focal point. Colors should be saturated and evenly applied as flat fills, retaining only a very subtle traditional print texture. Avoid heavy grain and excessive artificial aging. Typography and editorial layout Use a bold, large Chinese title with expressive hand-drawn brushwork, combined with a retro English serif typeface, prominent date numerals, and refined event information in small type. Apply an asymmetrical, rhythmic editorial layout in which text and illustration surround, interweave with, partially obscure, or spatially respond to one another instead of simply placing text over the image. The title, date, location, and event description should form a clear information hierarchy. All text must have genuine meaning and collectively create a complete, professional cultural event poster. Overall quality requirements The image should convey the original artistic sensibility of a mature independent illustrator, combining the playful freedom of hand drawing, vivid flat colors, surreal imagination, and professional typography. Maintain a consistent aesthetic across the series while allowing each theme to have its own composition, colors, and visual concept. Avoid generic children’s cartoons, 3D miniature models, CG rendering, photorealism, complex gradients, overly polished commercial illustration, random decoration, meaningless text, four-point starbursts, and template-like layouts. The final output should be a complete, refined, collectible, high-definition vertical art poster in a 9:16 aspect ratio.