Do you have bump map applied to the skin? Also, try using SSS and "specular only" lights. I've been rendering only realistic images with P6 so far, so I know it can be done.

I think the lack of shadows in your render above contributes to it's appearance. I don't think it looks like a toon, however. Just lacking some depth. Remember that IBL won't give any specularity by default. You can add more lights to the scene if necessary to achieve some extra highlights. The eyes, for example, need more specularity and the lips. Good bump mapping contributes greatly to realism as well.

Message edited on: 04/05/2005 22:17

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Tools :  3dsmax 2015, Daz Studio 4.6, PoserPro 2012, Blender v2.74

System: Pentium QuadCore i7, under Win 8, GeForce GTX 780 / 2GB GPU.