"Create a hyper-realistic 3D model of a muscular male character resembling the reference images, with both front and back views. The character should have well-defined muscles, realistic skin texture, and balanced anatomy, reflecting the physique of a fitness model. Render the model in a neutral, standing pose against a plain black background, with high-quality lighting and shadowing to highlight muscle definition. Provide the final output as a high-resolution .png or .jpeg image suitable for use in PowerPoint presentations and on websites, with either a transparent or black background."