Why Batman doesn't smile

Well, I guess, the title pretty much says it all.
Seeing what horrible opponents (and allies!) Batman has to face every day, it's really no surprise he lost his jolly smile along the way.
This time I drew the outlines and then scanned them. Thanks to my scanner, they got a little crappy. Maybe I'll try something new next time.

I already have a few ideas for other pictures and/or strips. Mainly a (sort of?) continuation for this one, called "A day off", and something named "Falling ill at the watchtower". I'm not sure which one to draw to first. Or if I'll draw them at all. We'll see.

Any requests? Comments? Opinions? =3