Luxury Three-Portrait Gallery Wall

Create an ultra-realistic modern gallery wall mockup in a luxury interior, vertical 4:5 composition. Show a smooth matte off-white wall with exactly three framed portrait photographs arranged horizontally in a straight row with equal spacing. Each frame is portrait-oriented, slim black metal or wood frame, white mat border, glass front with subtle reflections, and realistic shadows. The three framed photos show the same {argument name="portrait subject" default="young Black man"} in three different professional portrait styles: left frame shows a front-facing head-and-shoulders portrait wearing a {argument name="left outfit" default="blue and gold patterned African print shirt"}; center frame shows him looking downward while adjusting his cuff or watch, wearing a {argument name="center outfit" default="royal blue traditional-style shirt with glasses and a pocket square"}; right frame shows a formal front-facing business portrait wearing a {argument name="right outfit" default="navy suit, white shirt, navy tie, tie bar, and white pocket square"}. Place one long, thin black picture light centered above the frames, casting a warm soft glow across the wall and the top edges of the frames. Include a blurred green indoor plant in the lower left foreground, a dark modern wooden sideboard cabinet in the lower right, a simple white baseboard, and a gray stone or polished concrete floor. Lighting should be warm, high-end, calm, and gallery-like, with soft natural shadows and shallow depth of field in the foreground. No text, no logos, no watermark, no extra frames, keep exactly three portraits.