They look really fine!

Don't know anything about the rules your using, so can't comment there. However, I used to do a lot of ACW wargaming and our club varied the size of regiments based on experience. So a green unit (mostly yankees) would have a full 1000 man regiment. As the unit became more experienced, regiments tended to shrink in size. A veteran unit, for example, would be lucky to have 500 - 550 men (some as low as 350... but they were usually elite). Varying the size of the regiments based on experience also normally meant that the yankees pretty much outnumbered the rebs, as per the war. And on the table top, the system worked very well and resulted in lots of heated, tense fights with lots of skedaddling and reforming.
Just some food for thought.
