Create a warm and highly photorealistic birthday portrait of an 18-year-old boy celebrating his special day in a cozy modern living room. He wears a stylish forest-green overshirt over a plain cream T-shirt, dark jeans, white sneakers, and a simple leather bracelet. Position him seated comfortably on a wooden stool beside a birthday table, leaning slightly forward with both hands resting naturally on his knees. Do not place any gift, present, phone, or object in his hands. He looks directly at the camera with a bright, genuine smile and relaxed youthful expression. His complete face must be clearly visible, sharply focused, and evenly illuminated with soft frontal portrait lighting and warm fill illumination, keeping his eyes, cheeks, nose, and lips bright and detailed without harsh shadows. Decorate the living room with cream, green, gold, and white balloons, warm fairy lights, small floral arrangements, hanging ribbons, and subtle birthday confetti. Place a round cake on the table featuring vanilla frosting, green cream accents, strawberries, chocolate details, and glowing “18” candles. Put several wrapped gifts neatly on the floor beside the table rather than in his hands. Preserve realistic skin pores, natural facial proportions, detailed hair strands, accurate hands and fingers, realistic clothing texture, cake frosting, candle flames, balloon reflections, and authentic indoor lighting. Capture with an 85mm professional portrait lens, shallow depth of field, soft cinematic bokeh, crisp facial detail, realistic skin tones, and premium lifestyle birthday photography. Ultra-photorealistic 8K, vertical 4:5 composition, no cartoon, no CGI, no plastic appearance.