Split Background Studio Portrait

Create a high-end studio portrait of a smiling subject_description facing straight toward the camera, centered and cropped from the upper chest upward. He wears a fitted shirt_color_and_style. Split the entire image into exactly 2 vertical halves with a razor-sharp thin white divider line running perfectly from the top edge to the bottom edge through the center of his face and torso: the left half has a solid left_background_color studio backdrop, and the right half has a solid right_background_color studio backdrop. Keep the subject symmetrical and aligned with the divider, with one half of his face on each side, a natural friendly smile, crisp facial detail, realistic skin texture, polished commercial lighting, soft shadows, sharp focus, and premium editorial retouching. Use a vertical 3:4 composition, minimal background, no text, no logos, no props, no border other than the central divider.