Take the person from the reference image and create a single 2x2 grid showing this exact same close-up portrait under four different professional lighting setups. Identity lock: identical face, expression (calm neutral), hairstyle, dark top, head size and camera angle in every panel — only the light changes. Panel 1 REMBRANDT: key at forty-five degrees left and above, small triangle of light on the shadowed cheek, moody falloff. Panel 2 BUTTERFLY: key directly above the camera, soft symmetric shadow under the nose, beauty-portrait glow. Panel 3 SPLIT: key exactly from the side, one half of the face lit, the other in darkness. Panel 4 RIM: key behind the subject edging hair and shoulders in bright outline, face lifted only by faint fill, near-silhouette drama. Same {argument name="background color" default="medium-gray"} background throughout, 85mm look, sharp focus on the eyes. Small white labels beneath each panel: "REMBRANDT", "BUTTERFLY", "SPLIT", "RIM".
