So, only one person noticed that in the original image, I'd drawn Kat's drivetrain on the wrong side! It was originally on the correct side but, I'd drawn her riding on the wrong side of the road. I flipped the image and Presto! instead of correct drivetrain/wrong side of road, she was incorrect drivetrain/correct side of the road.

Ah, well. Back to the drawing board and here she is again!