Don't know if Poser face room works with DAZ meshes ,characters
I think ya need native Poser meshes ,characters.

But if ya don't know 3D ya going to half to use some kind of auto fix.
Don't know if any of them will be all that great

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Some are just better then other at making a mesh look like someone.
But they know 3D.

Ya would get a front n side view of there face ,load it in the work space.
morph a mesh to look like them ,with morph tools in a app like C4D ,Max ,Blender.

Don't know if ya could get the front ,side face .jpgs for guides in Poser.
Don't know how good Poser morph tools would work .
Don't know if ya can make the mesh trasparent.

 

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The Artist that will fight for decades to conquer their media.
Even if you never know their name ,your know their Art.
Dark Sphere Mage Vengeance