Diferent Face textures was used to have a final realistic effect. I created the original image. One for diffuse, other for bump map, other for displacement map, other for occlusion and other for specularity. I used a specialized software called CrazyBump to create all of them.
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The Subsurf and Displace modifiers were used to have the displacement effect.
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Some composition was created to have all the textures applied and golden effect.