Like the other one, this is a good start. For a quick snapshot, this would be great as is.
If you want it to "pop," I agree with meyers - punch up the contrast a bit. Ever tried sharpening to increase contrast? Use a large radius, like 50, and a small amount, like 20 (leave threshhold at zero).
Also, as always, select the eyes and lips and sharpen a bit using normal settings (midrange amount, small radius) - try something like 50,1.5,0 AFTER resizing and go from there.
Finally, this is a great chance to play with the soft light layer you and I have discussed (we did, right?). With a very soft brush, select the background and darken it. I'd also reduce the saturation. You want her lovely red hair to stand out, and right now the background looks reddish, reducing the impact. Compare this shot to mine of my daugther's to see how you want contrasting colors:
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