Ultra-realistic 4K cinematic fitness portrait of a strong athletic man performing a perfect forward …

"Ultra-realistic 4K cinematic fitness portrait of a strong athletic man performing a perfect forward lunge exercise, captured mid-movement with flawless posture and visible muscle engagement in legs and core, studio fitness campaign quality, hyper-detailed skin texture, natural pores, subtle sweat highlights, anatomically accurate proportions, wearing modern premium athletic wear (matte black compression shirt and performance shorts), sharp facial expression showing focus and intensity. Background: bright fluorescent yellow-green seamless studio backdrop, smooth gradient glow, high-contrast color separation between subject and background, vibrant yet clean commercial fitness aesthetic. Lighting: professional 3-point studio lighting setup with soft key light from front-left, rim light outlining body silhouette, subtle top light enhancing muscle definition, global illumination, HDR light balance. Camera: full-frame cinema camera, 85mm lens, f/1.8 aperture, ultra-shallow depth of field, subject tack-sharp focus, background softly diffused. Style: Nike-level advertising photography, editorial sports magazine quality, hyper-realistic textures, cinematic color grading, volumetric light detail, ultra-sharp focus, ray-traced reflections, global illumination, no motion blur, no distortion, professional composition, centered subject framing. Output: extreme ultra-premium photorealism, 4K resolution, commercial campaign quality, studio perfection, clean background, no artifacts"