Full-body character reference portrait of the master merchant, a fictional Japanese male tea-utensil merchant age 52 in Sakai, Japan circa 1580. Medium build, composed observant expression, slightly angular mature face, dark eyes, subtle facial age lines, clean-shaven, black hair with a little gray tied in a modest period-appropriate topknot. Historically grounded merchant-class Japanese clothing: understated warm terracotta-brown kosode, narrow muted sand-colored obi, simple straw sandals; no swords, no jewelry, no Chinese robes. Neutral standing pose, arms relaxed, both hands visible and empty. Plain warm cream background, clear silhouette, entire figure visible with space around it. One character only, no inset panels or additional poses. Match the established Sokichi character reference's painterly 2D historical illustration style inspired by Dunhuang murals: soft gouache, visible digital brush texture, stylized non-photorealistic features and expressive dark eyes, warm earthy ochre, terracotta, cream, sand, muted turquoise and deep indigo palette, matte painted surfaces, subtle aged plaster grain, soft diffused warm lighting with restrained rim light, no harsh black outlines, no photorealism, no text, no watermark. Japanese historical setting and costume, Dunhuang influence only in painterly treatment.
