Didn't get a chance to shoot yesterday, so pulled this one out of my daughter from earlier in the month and processed it for Day 14. I liked it in color, but think it works well in B&W. A little soft, because shooting with my Pentax 50-200mm at full zoom (200 mm). In addition to my usual processing added some gaussian blur at about 20% opacity at the end, which smoothed out the skin a bit from the extra USM I added earlier in processing.
Roger's right ... focus is a tad soft, but that's the limitations of the Pentax 50-200mm digital tele I'm afraid. (Understand routerguy's comment, but it ain't the shutter speed on this one. 1/90 not a problem for me, I've got a ton of rock steady shots handheld at 1/30, including macros and teles ... and some even slower than that with an assist from the K100D's shake reduction)
Don't think there's anything wrong with your gear. 1/90th shutter speed is what borked your focus here. That's too slow to stop people from blurring out slightly, even when they are standing 'still'.
Nice. I like the ringlets of hair on either side acting as a micro frame. The hair on the left side near the eye is a bit distracting (or it adds some down-home feel to it, depending on your point of view).