Inktober: This Day In History

I'm doing Inktober this year. For the month of October I will be making an ink cartoon of an historic event from that day. Here's the first 6... 

Children's Zoo project

I'm currently finishing up a big project for the Philadelphia Zoo's new children zoo which should be open next spring. Among many animal illustrations (60 or so) I also have to make American Sign Language signs as shown above. Can anyone guess what is being signed?

All artwork is Copyright © The Philadelphia Zoo 2012