Hi there

Are you using Raytraced shadows on yours lights or are you using Depth map shadows ? I would use Rytraced shadows as first and delete all AO nodes as well I think there is script fro that over here

https://www.renderosity.com/mod/freestuff/remove-scene-ao/70488

Then check lighting as well and I would use EZSkin 2 in earlier Poser version where should work,in Poser 2014 I using only EZSkin 2,in Poser 11 I use only EZSkin 3,then I would have look on EnvSphere

This hair looks like do have AO nodes and did you checked for hair Light emitter if its checked or not,try render with checked and unchecked there and other that that,render settings would help as well

Here are my render settings,i use mostly Dimension 3D - Render FireFly

Hope this helps

Thanks,Jura