Japanese Artist Poster Portrait

Create a vertical Japanese art-poster illustration featuring a stylish East Asian male artist as the central subject. Canvas: portrait orientation, roughly 2:3 ratio, cream washi-paper background with subtle grain and ink speckles. Subject: a three-quarter bust portrait of a young adult man with hair style, sharp eyebrows, almond eyes looking left, defined nose, mustache and short beard, small gold hoop earring, calm serious expression. He wears a black crew-neck shirt with a small circular white emblem on the chest and a loose dark indigo kimono-like jacket covered in expressive white, navy, gold, and magenta paint splashes. His right hand holds exactly 1 long blue-handled paintbrush with white bristles near the lower-left center of the image. Composition: place the figure slightly right of center, cropped from mid-torso upward. Behind him use bold modern Japanese graphic design: exactly 1 large textured gold circle in the upper left, exactly 1 thick deep-navy flowing S-shaped vertical ribbon behind the head, exactly 1 magenta semicircle on the right edge, exactly 3 thin circular line motifs, exactly 2 vertical gold rectangular bars, exactly 1 small navy dotted grid, and scattered ink splatters in navy, white, gold, and magenta. Text content: include exactly 3 text areas. At upper left, vertical Japanese copy reading vertical Japanese slogan. At bottom left, elegant cursive English word signature word. Under it, two small Japanese lines reading bottom Japanese caption. Add exactly 1 small red square seal stamp at the bottom-left corner. Visual style: premium editorial poster, contemporary ukiyo-e meets fashion illustration, clean vector-like linework with painterly texture, high detail in face and hair, rich indigo and gold palette, dynamic brush-stroke energy, refined negative space, no photorealism. Constraints: keep all text legible and positioned as described, do not add extra people, extra brushes, frames, logos, or watermarks.