Here is one of my own attempts using V3RR. Completely different girl, completely different bodytype.

But still correct proportions, correct bodydetail, correct shape.
THEN you can add photorealistic lights and a photorealistic skin.

But you first need to have an accurately shaped mesh.
And so far none of the meshes out there except MIKI deliver that.
It wouldn't even be such a problem if not each and any clothing item out there wasn't tailored for her default bodyshape.
And the "morphforms" simply don't cut it, so you need a custom morph.

So even IF you make an accurate morph for V4.1, no clothing will fit anymore.
Not to mention that it is extremely hard to do a really radical remorph with her because of the JSM mags.

Put V4.1 next to a photograph of a real woman.
Supermodel, average woman, old, young, whatever.
You will quickly notice how much is wrong with her.