Cheerful Middle-aged Japanese Golfer Illustration AI Image Prompt

Create a vertical sports fashion illustration of a cheerful middle-aged Japanese man playing golf, shown from the hips up in a completed follow-through pose. He has salt-and-pepper tousled hair, light stubble, warm smiling expression, and black rectangular glasses, looking upward to the left as if watching the ball. He wears a dark navy long-sleeve golf top with subtle white highlights, white golf pants, a black belt, and a white golf glove; a golf club rests across his shoulders with both hands gripping it near the right side of the composition. Use an elegant ink-and-watercolor editorial style with crisp sketch lines, hatching, splattered pigment, and textured paper background. Compose him centered-right, dynamic and slightly diagonal, with abstract golf-themed graphic elements around him: exactly 4 visible golf balls in the lower-left area and right side, 2 golf club-head silhouettes on the left, 1 translucent blue hand silhouette behind the clubs, 1 large dark navy triangular textured block on the lower left, 1 yellow triangular beam rising diagonally from the lower center, 1 red-orange textured circle on the right, 1 small solid yellow sun circle at the upper left, 1 small solid navy dot near the lower center, and 1 broad blue circular brushstroke arc sweeping behind the golfer from upper left to upper right. Add white grass silhouettes and fine crossing lines in the lower foreground, plus small blue ink speckles throughout. Keep the background mostly off-white with ample negative space. Include a small handwritten signature and the date {argument name="date text" default="July 19, 2026"} in the bottom-right corner, with the signature reading {argument name="signature text" default="Oyagi"}. The golfer should feel like an enthusiastic beginner practicing for a weekend golf outing, refined but lively, with no extra text or logo.