Thanks people! 
I´ll update it very soon with the final version and final leather´s textures.
I´m using Vray, since I know this engine very well, but I had to learn how to use the new SSS material. The skin shader of mental ray is still better for me, more intuitive and easy in general, and realistic! but this shader of vray is not bad, I hope to see a great skin shader in the future made by some artist but my decision of using vray is because the metals, I really love how Vray render the materials like chrome, metals and leather. Also it render perfectly the layers for postproduction. And we can´t forget the fantastic displacement with vray. the whole character has displacement maps for ultradetails in every piece.
the next step is gonna be to make a little cloth for the legs, and later to make the shaders for the dragon and new textures for the chair of the dragon and other stuffs. Don´t forget that my intention is to make a little animation 
