In any case, I have spent hours trying to get the photo where it is (because unfortunately Lightroom has no blacks / whites for brushes), so more time fiddling with it would not be justified.
Hours? Wow, a little familiarity with photoshop would get you a long way. These types of adjustments should take minutes at most. Too many people rely on the sliders in lightroom, and fail to realize the power and creative freedom they are missing out on.
Sure, it takes a minute to paint a brush over her body, add a graduated filter to darken a corner, and move 3 sliders (that's what the photo has); okay, plus a few tens of spot removals. But it took me hours (over multiple sessions) because I was learning, I was trying all sorts of stuff and I never knew what the photo should look like.
I've only posted this shot because it was an extreme example of what post-processing means. Initially, I thought it's a dud. It's not among my preferred, so I don't feel like spending more time with it; maybe when I'll learn more about post.
(By the way, the reason why her face looks like it has a flash on it is because of the +25 clarity. Who would just know that? My general experience is that positive clarity is bad for women portraits.)
Here is an even more dramatic example of recovery (although LR is not of much help here - can't properly do the edges of the lips); if someone doesn't think it's dramatic, consider that it's F4, 1/100 s, ISO 3200 on a 40D (that's how low the light was). Sure, this one can't be transformed into a real fashion looking shot, but I've learned a lot about what can be done.