Mazak,

Looking good!

Let's debug the artifacts a little bit.

It could be from the light, Shadow Min Bias.
It could be from the material-based AO, RayBias.

Disable shadows on the infinite lights. Render again. If the artifacts are gone, it is the light. Re-enable Shadows on the light, and try increasing the Shadow Min Bias. I was using .2 - that may be too tight for Miki2 geometry. Try .3, .4. Or you could switch to depth-mapped shadows. You do not need to re-Synchronize when changing light settings.

On the other hand, if infinite light shadow is not the cause, then it is the AO. Try editing the Template Skin Ambient_Occlusion node. Change the RayBias from .1, to .2 or .3. You must Synchronize after each node change you make before rendering.

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