I decided after I started painting the shingled walls that the colors were too dark and drab. So I repainted the walls antique white, the windows / door black-green, the shingles dark gray. Hard to see in photos, but the gray gives the shingles a nice weathered look.
Added a short wall on the inside (not in the plans) so I could build a cozy kitchen.
Next to install LED lighting, finish porch and move on to the second floor.