If your monitor is not calibrated properly, none of it will make a whit of difference. And no matter what you do, you can't ensure that all of your potential audience have
their monitors calibrated.
As a professional designer who regularly does photo image correction for print, I keep my monitor very well calibrated for color. But no matter what I do, I cannot stop a client from saying, "All your images look too dark, or too light." When it's feasible, I ask them to check their calibration. When it is not feasible, I suggest that they trust my experience. (And for the record, ease of color calibration and the ability for a monitor to hold calibration, is
another area where Apple has considerable superiority over a PC-based machine.)
Brewster, from the screen shot you supplied, I think the original image was a little too blue and dim. I think your corrections here for color were good, but you may have overdone it on the contrast.
To you, Book Guy, while I definitely prefer to see a model's face, the feature I admire most about this model is her abdomen. It looks delicious.

To each their own, I suppose.