I decided to try to improve the hair and do a closeup render. (I'm still not good with the styling tools, but this is better than it was.) Observations: With too large of emitter, specular becomes too subtle unless you blow out the image. While the more realistic small emitters generate artifacts, go too large and the lighting becomes unnaturally subtle. I do think we're getting close with what can be achieved with the look of Hair room hair strands (assuming a better stylist is at work), but it takes a lot of rendering power to put raytraced shadows in Hair Room hair, as I obviously had to do with an all-IDL setup like this. I realize there are other issues here that aren't directly related to the lighting setup. I.e. just under her chin, Poser doesn't like my custom morph and didn't render a small section properly; I thought I had applied SSS to the eyes but the SSS pass disproved that, so gotta work on that. My bump on the skin should also be a bit more aggressive. Lights for this render: right wall of render room is main emitter, less ambient than my previous render; also ambient on a lamp prop on the dresser to the lady's right (our left).