Hyperrealistic photo, Helmut Newton female bodybuilder back study, training in the large gym, close-up on the left side of a female athlete's back, (she is lifting up a heavy barbell:1.2), (extremely well-defined muscules, latissimus dorsi, trapezius, triceps, biceps are flexed and vascular, muscular body:1.2), ass back, (athletic built body:1.4), veins and tendons are visible under the skin, dramatic chiaroscuro lighting, dark red background, a single strong light source creates high contrast between light and shadow, highlighting the muscular relief. Her hair is tied in a tight, sweaty bun. She is nude, focused expression, raw intensity. Shot on a 85mm lens, 8k resolution, anatomical study, sharp focus, incredible detail.