I personally dont think the morphed heads are the main problem.  Sure there are some out there that are terrible as far as realistic shape goes, but most of them are within real world possabilities.   My thoughts are that if you saw a person in real life with the exact identical head shape to a V4 character, you would not think they look fake.  The colour of the skin, variations in its texture and appearance, as well as specular reflections and global illumination make people look real in the real world, not the shape of their head. Every now and then you see the odd person online or in real life with some severe dephormations of their head, but they still look realistic.

well thats my opinion anyway.

When you go through the poser gallery here, the one thing that stands out more than anything is the complete lack of understanding of real world lighting.  I would say I see about 2% of the poser gallery entries that have lighting that looks realistic and appropriate to the scene. And these images are generally the ones that look most realistic.

take the attached image from my gallery, this was done in poser 7, and uses no form of SSS or anything sophisticated like that. I think this looks quite realistic considering. The character in use here is a highly stylized character and texture set. The lighting, pose and surroundings of this image make it look alot more realistic than it would otherwise.

 

Take the render by mysticeagle above.  The morph of V4 is quite realistic from what I can tell, but I find those images look just as unrealistic as the other supermodel V4 images in the gallery. and its the lighting that does it.

TemplarGFX
3D Hobbyist since 1996
I use poser native units

167 Car Materials for Poser