Late for Party

This is from a sketchbook that I’m working on. The theme is going to be about animals. I’ve always thought that penguins look like they’re wearing tuxedos. And for some reason, the way they stand remains me of well-educated gentlemen.
Here is a pen and ink sketch of three penguins late for a tuxedo party. The bouncer is not sure if he should let them in. This idea just popped out of nowhere. A lot of hatching with pen, it made me a bit frustrated when the ink kept running out. But it was fun.