Well, there he is, all finished.
This would have been easier if I could draw a line that was marginally straight. This is especially apparent in the far wing, where the line is wobbly. I erased and drew and erased and drew. Things weren’t made easier by the fact that I had anywhere from 1 to 3 kids in my lap at any given time. They love watching me tablet-paint. Jostled elbows do not for straight lines make.
I know there’s a line tool, but I can’t make it draw non-vector lines, and I didn’t want to mess with wading through the help files to find out how. I imagine this would have looked great in Illustrator, but that didn’t occur to me until just now.