@GKDantas – This one is all texture maps for both the skull and the plane underneath. I created an Occlusion map and multiplied them into the color map for the main texture. Highlights are the main color map but pulled down to about 50%. I do have a Shininess map (specularity), a Normal map and a Displacement map. 

While the backdrop is only the color Black, I put an HDRI map in for the background to bring out some of the metal detail. No Global illumination but Indirect Light is at 200%.