nose, nostrils and possibly chin are not casting shadows, indicating bad lite/shadow settings.
my vote would be to use IDL render (poser 7 or later) to get nice soft shadows everywhere,
unless cartoon shading desired.

would advise against changing object's shadow value from 1.0, as this is a feature in poser which
causes poser 4 renderer/FFRender to allow solid, opaque objects to transmit lite (oxymoron).