I use great books to weight the flooring as it dries flat. I like to think some of the principles and observations seep into the wood and inform the structure.
I filled the voids in the walls with foam core (smooshes into the corners nicely), thin kraft cardboard (looks like MDF, sandable) and wood glue (dries hard). One of the side walls has a large arch that used to open into another room; it’s since been bricked over.
The century-old oak beams are still visible on the interior walls. I whittle-aged them without stabbing myself. Oak is way denser than basswood :)
Oopsie! I mis-measured the height of the arch :/ The century-old oak beam supporting this wall is/was/will be, um, custom fitted.
Then I spent a lot of time staining and sanding. The weather today was mild enough —and not raining! —that I could do it outside. That was nice.
The exterior walls are clad in vertical board-and-batten, stained daffodil Keli yellow and classic gray.
Looks like the circus came to town!
—Erin Morgenstern, The Night Circus
nancyland.com 
It looks great! I think the “custom fit” beam will look great. Adds to the character of the structure. Layers of renos over time!
Exactly, Kat! Although I was a little chagrined to discover my error, as the original builder :)
Circus? The yellow and grey are lovely!
Perhaps I should have said “cirque”? No that’s not right either. I’m glad you like the yellow and grey — another of my favorite color duos. It’s a leap of faith — or educated choice — that I won’t regret the bold contrast :)
Ohhhh, pretty!
Speaking of books, I’m greatly enjoying the one you recommended…read some of it out loud to Husband.
Thank you, Keli. Which one of the books are you enjoying? (I wish more folk would share book recommendations. Hint, hint :)
How to Fly a Horse
My favorite book recommendation to give….subscribe to National Geographic :)
I love the brick pattern, great work and detail!
Bennie, thanks! Brick walls, with all their hand-laid imperfections, tell such great, enduring stories :)