an issue

I see that I could angle the trim pieces to a point and not need to curve the wood.. the way I cut the paper could set the pattern.

You may want to think about making the trim out of polyclay. You could trace the openings for patterns. A simple trim of a thin, flat piece with a delicate roll or two or three on top would make a nice profile. You'd have to experiment.

With so many windows, some with pointed tops, some rounded, I think it would be the only way to be consistent throughout. And I think with so many windows, consistency is crucial to a uniform look.

I love what you're doing to this house!

Yes I have thought of the polyclay and it may be the best solution, your right, for example the rounded window that has the paning done is actually squared off , so depending on how I cut the paper it will make a difference as well