I've created a few more buildings in the meantime and I thought I'd add them to the thread. Here's Building 3, the generic habitation module.

Not for Perspectives 3. SM: Castles contains a Motte & Bailey style castle with a log wall, but it was done in Perspectives Pro.

Yes, I ran into a problem during the livestream and managed to mess up the whole process in CC3+ (So the "technical issues" were mostly me messing things up. :D) . I recovered (most of) it, but the whole thing ended up rather confusing, so I removed it from YouTube for now. Sorry for that!

That would be a great topic for an article!

The city is coming together nicely!

Concerning chimneys: The Jon Roberts style doesn't have any, but load up the CD3 Bitmap A default catalog and you'll find some chimneys which fit it just fine.