A lot of this look comes from a combination of surface shine, directional lighting, and some post-processing.

For the skin, use a posing oil or a very small amount of baby oil to create specular highlights. Apply it sparingly—too much can look messy and flatten detail.

For lighting, the key is to emphasize shadows and highlights across the muscles. Use lights positioned broadly from the sides, almost horizontally opposed, and angled slightly downward. Then adjust power to control how dramatic the contouring appears. This side-oriented setup helps reveal grooves and definition.

If you want a true silver/metal effect, that usually goes beyond oil and lighting alone—the more extreme example is likely using metallic makeup or body paint.

In post, increase contrast selectively so highlights feel brighter and shadows deeper. A curves adjustment is a useful way to push the highlights toward a more blown, reflective look while anchoring the midtones and darker areas so the subject keeps shape.

So: light side-on, use a light coat of posing oil, and finish with contrast/highlight shaping in post. For a fully metallic finish, add metallic body makeup or paint.