The first time I inked these strips I guess I was in a hurry because I'd left out most of the ear details and all of the glasses stems. Adding these minor details later made a huge difference in the overall look of strips and added meaning in some respects as well. In particular, the kid's glasses in "Bologna" originally just looked like giant, buggy eyes.
I guess when you're making fairly small, simple drawing, the tiniest details can make huge differences.
This is one of the rare cases in which I've reworked an inked drawing in a significant way. It was a good experience and is a great tool to have in the toolbox.