I left the doors unpainted in the front entryway. (Thanks for your feedback.)
The door between the living room and the stairway shows its age a little (it’s original to the house, so 100+ years old), but I think it has character. We, or a future owner, could paint or refinish it someday.
And with that… hooray! All of the trim in the house has been painted — upstairs, downstairs, and in the basement! Happy dance time. I can finally cross that one off my list.