Tried Jill GreenbergHer website style. I think I am missing the light from the top to light the hair more.
Steps for this shot.
The lighting is the first step.
Lit from both sides with softboxes
then I used a Gary Fong for the front. But I think that was the wrong choice. An umbrella or if you have a ring flash would be much better.
And an umbrella from the top which I don't have here. MUST RESHOOT.
Post Processing:
Basically Dodge/Burn
with noise reduction to smooth the skin.
Some levels for the background.
USM thru channels
resize
sharpen
Resharpen the face only
save for web