Thanks very much for the comments.

Whoops. The reddish color is the one I'm going for...the pink is a layer style washout so I can see what I'm drawing over the top of the original building rough-in. The ones that are still reddish live on another layer (because I had clicked on another layer when I was drawing those).

So, pinkish is not a permanent design decision! I'm going to try to suggest chinese-style tile roofs, with maybe some wooden mixed in for variety.
M