I really like the look that virtual painter's air brush gives to children's portraits--when it works. It looked awful on this pic, so the experiment was on to see what would give me that look. Before I went to bed last night, I was certain I'd remember what worked in the morning--yeah right.
Air brush is in there somewhere, along with lucis art, impressionist, nik, fantastic machine's paint engine (I'm finding it a great followup to impressionist), and flaming pear's melancholytron. When I was all done, I ran buzz (2.0) modified ink stack on an earlier layer and blended at low opacity to put a little detail back in. There may have been a little "kitchen sink" along the way

Obviously, I'm in experiment mode working on a new look for portraits.