Here's 7 x 30 figure OG/BH regiments. The two on the right were done about 10 years ago. The other five, plus the command and artillery were done last month.

Very much a WIP. (The light coat of dip I brushed on is still drying on some of them.) Just did a simple block and dip with these much like my recent DAK project. I think this approach really suits this period.

Finished the bases on one regiment last night.

This is almost all the infantry for now. I will do Berdan's as well as some individual skirmishers shortly. I'll also paint a couple of zouave regiments, just for fun at some point, but these won't be for awhile. To complete my initial Union force I'll paint two more guns with crew and two cavalry regiments, along with their dismounts.
I've laid out a similarly sized Confederate force which I have partly prepped. One regiment done and ready to grit and flock at this point.