Nice pose on the gentleman. Is it going to be all digitally finished?Do you know of any good online sources of this kind of costume? It'd be a great reference to have a good site of photography of various period costuming.
Dover makes a couple good costume books. Wikipedia is also a great resource. I use that a lot these days. Just type fashion and the time period.The toughest thing is finding good poor people clothing reference. That was not drawn so much through history.