Okay, so I'm pretty new to MOCs. One of the first things I'm trying is getting another 10193 Medieval Market Village and building the second set of buildings in different colors than the first two. There are two buildings in the set, one is a blacksmith shop/stables, the other is a pub/inn sort of building. The first building uses tan parts, the second uses medium blue ones. I'm simply going to buy extra parts in two other colors and build these according to the instructions and make any further customizations as I go along. For anyone who would like to try this sort of thing, here are the tan parts from the first building:

x3

x44

x8

x36

x3

x5

x6
Here's the medium blue parts for the other building:

x2

x37

x59

x19
Anyway, I don't know if that will be helpful to anyone else, but I already did the dirty work, so I figured I would post it up here in case someone else has that same sort of idea.
EDIT: I just checked on S@H and (as an example) replacing the tan parts with brick-yellow parts totals $9.65 USD. So it's not super-expensive to do this sort of thing.