Incredibly delightful project!
How many hours have you invested in this?
I made the first building, the San Fernando church back in March 2008. I started the Governor's palace in Dec 2009 and finished it After somewhat of a long hiatus in October 2012.
Off and on over the last five years I have made enough buildings to fill a 10x4ft table. I can't actually remember how many I have now though!

One of these days I'll lay them all out and photograph the whole town.
