Well, I'd start by thinking about what's important in the picture.
Him - his face primarily and especially his eyes His professionalism - as a realtor primarily His approachability - sympathetic persona His aura of successfulness - antique car and big dollar house
Now he wants to be real careful about how he parades his competence, since he's making money off every sale and if he looks too rich he'll drive away the lower end sellers and buyers, and if he looks too common the high end sellers won't give him a second look.
But first and foremost he's selling real estate, not antique cars.
So, if all his clients are high end, I'd get the car in front of a recently sold high end house and figure out how to make his face the most important part of the picture.
As for filters - get the essentials - his face, his trade. Worry about filters some other day unless his skin is some awful color (like green) and you need to correct for it. Polarized clouds are not going to sell houses, he is. Fancy cars are not going to sell houses, he is. All the print output is going to be digital anyway, so he's going to need digital files for his printer. If something awful happens with the color you can fix it in Photoshop, but the worst thing that could happen is that you'd forget to use the fill flash, or to dial it down far enough to not blow out the highlights.
And in advance, get someone to sit for you and shoot their face from a bunch of different angles. Look over the take and notice the psychological effect on the viewer of the angles.
Pick one that's right for a friendly realtor.
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Emily L. Ferguson
mailto:elf@xxxxxxxx
508-563-6822
New England landscapes, wooden boats and races, press photography http://www.vsu.cape.com/~elf/