Fitness influencer gym shot, Sony A7III, 85mm f/1.8, Athletic woman, push ass back, show ass, bent over, toned glutes, Hip thrust exercise, barbell resting on hips, Back arched naturally → glutes fully engaged, Hands gripping barbell → knuckles white from tension, Sports bra + high-waisted leggings, Sweat sheen on lower back, Muscle definition in shoulders/back, Hair in messy bun, focused expression, Gym setting, Clean modern gym, floor-to-ceiling mirrors, dumbbell rack in bokeh background, morning light through windows, Shallow depth of field, (sharp on glutes), cinematic lighting, skin texture detail, natural motion blur on moving hair, fitness magazine aesthetic, 8k