Everybody has done such a great job with this photo! I wanted to try it out.
With this size photo and considering the subject doesn't have major blemishes, I just did a low opacity (about 35%) and low flow (also about 35-45%) clone touch up all over the face after duplicating the layer. Then, I reduced the layers opacity to 90% to let out just a hint of the original texture.
Then the typical eye whitening and saturation, followed by USM on the eyes at: 60, 2.5, 1.0.
Burned along her jawline for shadow/cheekbone effect. I also dodged around her mouth to reduce frown line/shadow. Burned a bit in cleavage for “oomph.”
Cleaned up the background of spots and hairs.
Levels for a tad of dramatic feel.