Muscular Gym Mirror Selfie – Strong & Confident Fitness Portrait

Create an ultra-realistic fitness portrait based on the uploaded reference image. Preserve the subject’s exact facial identity and recognizable features, including face shape, hairstyle, eyebrows, eyes, nose, lips, jawline, moustache/beard pattern, skin tone, and natural skin texture. Show the same young man taking a mirror selfie inside a modern, well-equipped gym, holding a black smartphone in one hand. He has a muscular, athletic physique with defined shoulders, chest, arms, and abdominal muscles, wearing black gym shorts and a simple silver chain necklace with a white wireless earbud in one ear. Natural confident expression, slightly turned head, relaxed but powerful posture. Background filled with realistic dumbbells, weight racks, gym machines, mirrors, and subtle reflections. Cool indoor gym lighting, realistic shadows, detailed skin texture, authentic muscle definition, DSLR photography, sharp focus, cinematic contrast, photorealistic 4K quality, natural proportions, no artificial body distortion, no extra fingers or limbs, no watermark. Insert discreet watermark in the lower right corner of the image, vertical text (rotated 90°), written "aipromptlabs.online", Calibri Light font, white color with low opacity (semi-transparent), medium size. Extreme sharpness on the face, fabric texture and typography of the letters. Shot on Canon EOS R5, 50mm f/2.8, studio light.