So with this in mind, I've changed the model again and the end result is this:

Textures, Illumination and Render process

I usually work the render, the illumination and the textures simultaneously, as I feel that it's better to see all the set, but it is not essential. For the illumination, I've used one constant sphere or hemisphere, with the normal towards the inside, but you could us an image for the environment, as this good too. I have uses one area light to create the shadows and to illuminate, and I have used some other lights to pick up the specular on the different objects and another on the model.

Now, I began to work in the textures. I have constructed in Photoshop the diffuse, specular and bump maps and we will be creating the texture and the lights. I wanted to give her a very big tattoo as I have seen many models on the Internet with them. Most of the tattoos that I have found, where a little saturated but I concentrated on the tattoo's of the Yakuza, which are very luminous, with all there strong colors, and this is the effect that I wanted to give to Sanyeng.
Here are some of the details of the texture colour map and the tattoo comparative.