Actually, the pose was totally random. My daughter is a seasoned poser, and this is what happened today. There were much sweeter, girly, shots, but I just had to post this. She has just had her first haircut, and was playing dressups with her grandma's jewellery.
So, I shot this relatively wide open at f/1.6 - a common go-to aperture for my portraiture to drop the background nicely OOF. You'll note that I composed the shot to make use of the background shapes (those posts, the shrubs etc), but it never really goes perfectly when there are children involved. I was lying down to get the perspective right for the other shots, but this one should have been a couple of inches higher (because she's more upright).
For PP, I first adjusted curves in Lightroom 3 to give me a good base raw file. I exported to CS5, and then I did some basic dodging and burning (as almost always), some minor sharpening and contrast editing, prior to a black and white conversion using chanels. I always use chanels for b&w, because convert-to-grayscale and desaturate methods are rubbish - they remove useful information from your image file. It's not quite so simple as that, as I also tone my b&w shots warm or cool (or neutral) just like a printed b&w (which would instead be based on your film, process, and paper choices). After that, I did a final sharpen using, essentially, an unsharp mask in combination with a high pass filter, and flattened the file and saved as a PSD file. I then cropped and outputted in Lightroom 3 to the JPG you see here, with another sharpening process (this time for screen) due to the resizing. Sounds like a lot of sharpening, but it's really just because the PSD file is prepped for print, which needs to be treated differently than a file for the web. And I can't be bothered doing the whole process independantly for something at this resolution.