Generate a high-fashion collage style poster, vertical 3:4 composition. The main subject…

Generate a high-fashion collage style poster, vertical 3:4 composition. The main subject is [subject], serving as the visual center, occupying about 45%-55% of the frame, clear and prominent, with strong visual appeal. The background is a clean light-colored base, with the overall design using high-end graphic design poster language. Behind the main subject, add an enlarged grayscale image or close-up related to the subject, serving as a second visual layer, creating a layered relationship of a colorful foreground subject + a large grayscale background image. Around the subject, add design elements such as abstract brushstrokes, ink splashes, splatter textures, geometric lines, circular auxiliary graphics, dot matrix, and small decorative symbols, to enhance the rhythm and modernity of the image. The overall typography uses a structure of "large bold title + one line of handwritten-style accent text + one line of small explanatory text", forming clear information hierarchy. The image style should combine fashion, commercial, and poster aesthetics. The composition should be complete, layers rich, subject prominent, and the color scheme unified and matching the attributes and temperament of the [subject]. No cheap template feel, no clutter, no low clarity, no superfluous elements, no garbled text, no watermarks.