i use card when making my buildings! It's a little more time consuming than using balsa but if done right looks just as good. I use a thicker card to build the main frame work of the buildings and then use normal card from cereal packets and the like for planking. I'll take a few pictures of my town and post them up to show you guys next week when my group gets togther! So far I have three big buildings, 2 medium, a couple of tents, barn, livery stable and a church made up out of card so far.
Jet your buildings and minis are great as usual! What make is the lady in your gang?