A realistic digital illustration showing a side-by-side progression of a Caucasian male with curly brown hair at three fitness stages: Week 0, Week 9, and Week 19. In each stage, he is shirtless, wearing the same black athletic shorts, standing in the same mirror selfie pose in a gym locker room. Week 0: Approximately 20% body fat, minimal muscle definition, slightly rounded waist. Week 9: Noticeably leaner with a tighter waist, visible upper body muscle development, light abdominal definition (~14–15% body fat). Week 19: Athletic physique with a well-defined chest, arms, shoulders, visible 6-pack, strong posture (~10–12% body fat). The lighting and background remain consistent across all three images to highlight the physical transformation. Ver más