Ultra-realistic 3D model of an Australian kangaroo (Macropus species), full-body, in a neutral, symmetrical standing pose — upright on hind legs with tail resting for balance and arms relaxed. Anatomically accurate body proportions, including powerful hind legs, long muscular tail, defined forearms, and characteristic head shape with ears upright. True-to-life fur texture and natural coloration — soft brown to grayish coat with slight tonal variation across the body. High-resolution surface details including fur direction, muscle definition, and skin folds. The model must reflect biological realism, symmetry, and be suitable for close-up rendering in realistic lighting conditions. No stylization or exaggeration