Create an ultra-realistic luxury studio birthday portrait of {argument name="subject" default="a young Black boy"} seated confidently on a large matte white rectangular pedestal, centered in a vertical composition. He faces the camera directly with a bright natural smile, sitting upright with both hands resting comfortably on his knees and his legs hanging over the front edge. Dress him in a sharp {argument name="outfit" default="black tuxedo with satin lapels, white dress shirt, black bow tie, black trousers, and glossy black loafers"}. Use a warm caramel-brown seamless studio backdrop and soft professional lighting with gentle shadows under the pedestal and shoes, polished editorial photography quality, crisp focus, realistic skin texture, and subtle highlights on the suit and balloons. Surround the setup with minimalist white display blocks: one large central block he sits on, one partial white block at the lower left, one tall narrow white block at the right, and one partial taller block at the far right. Add exactly 2 balloon arrangements: on the left, a clear oversized bubble balloon on a thin stand containing exactly 5 smaller balloons inside, 4 black and 1 white, tied with a white bow and long black-and-white tassel streamers; on the right, a floating cluster of exactly 7 visible helium balloons, 4 black and 3 pearl white, with thin black and white strings and a curled white ribbon. Keep the scene elegant, celebratory, and high-end, with no text, no cake, no candles, no watermark, and no extra props. Use a vertical 2:3 portrait crop, full body visible from head to shoes.