2 things

In the Renders settings, Preview,  set Texture display preview at 4096 (lower right hand corner)

The second is the shadow, U use depht shadows, right?
In the light parameters (the light with shadows ON), set Preview shadow map size higher,  1024, 2048 or 4096

(Under the eyes are the shadows of the lashes.) Will render fine with the right transmap.

Let's know how goes.
Happy Posering

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!