Muscular Caucasian woman crouching in box

35 39 years authentic authenticity beauty black background blonde hair box caucasian color image concept crouching exercise fitness full length healthy healthy living holding kneeling lifestyle mid adult mid adult women model muscular nudity one person people photography portrait posing real people side view square image strength studio shot woman ethereal grit30 35 30 40 30's 30s 35 40 activity adult bending blond carton color colour container energy exercising exertion female full body full length gal health human human being lady muscle one person physical fitness portraiture power self improvement square studio thirties thirty western european women workout