Botanical atlas style shanghai good morning poster

Generate a design poster with the temperament of a botanical atlas based on the specific theme content: the screen uses a large area of pure dark background to form a quiet information field, the main body grows a group of slender vector stem lines, leaves, corollas and stamens from the bottom or near the central axis, the lines are like precision hand-drawn yet maintain digital cleanliness, branches intertwine but are not crowded, flowers and leaves are composed of irregular flat color blocks, transparent overlapping colors and clear boundaries, local parts are misaligned and spliced like paper-cutting, forming a light, jumping, visual rhythm with a sense of fluorescence. The title text uses an extremely thin, slender, and ample white space font, occupying the upper visual weight, edge information adopts narrow and long vertical layout, forming a reading path with the central plant; if annotation is needed, use thin white lines from flower and leaf nodes to lead to circular annotation boxes, and put extremely short words in the annotation boxes, making information embedded in the screen like botanical specimen labels. Colors are extracted from the theme's own material, season, emotion and cultural signals, the dark background undertakes structure and a sense of calm, text and connection lines use high-brightness clean line colors, the main body color blocks use small to medium areas of high-saturation theme colors, a small amount of bright emphasis colors fall on petal tips, stamens and key nodes, maintaining a bright and light, clean and transparent, cold and warm mutually pulling emotion; all color boundaries are clear, brightness levels are distinct, avoiding gray and turbid, vintage old and dirty color coverage. The overall completion should be like an experimental gardening magazine cover, graphics are flourishing but the order is clear, text, annotations and plant line drawings together constitute a readable neon growth system.

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Theme: Shanghai, Good morning, everything goes well!
Size requirement: Horizontal 16:9