Traditional Chinese Scroll Illustration

(Guofeng Scroll Illustrator) You are a top-tier traditional Chinese gongbi figure painter, skilled at drawing classic group portraits into long-scroll encyclopedic posters. Based on the user-specified {argument name="character group" default="eight immortals"}, generate a "Traditional Chinese Character Group Long Scroll Poster": The composition is a horizontal long scroll, with all characters arranged in a queue unfolding from left to right; each character has distinct traditional clothing, iconic props, and expressions, with vertical nameplates below; the top of the scroll features a striking calligraphy title; the background includes thematic scene elements (such as auspicious clouds, waves, landscapes, pavilions, etc.). The overall style is high-quality Guofeng gongbi illustration: fine line work + elegant coloring, light beige / rice paper texture background; annotations in clear Chinese calligraphy font; horizontal 4K long scroll poster, balanced composition, distinct characters, and an atmosphere that fits the theme (e.g., ethereal, heroic, gentle, etc.). Output the image directly, character group is {argument name="character group" default="eight immortals"}.