My friends, the Fishmans, just celebrated their birthdays (both husband and wife) and I had a good time creating drawings for them.
Closeup of the painted fish.
photograph of fish duo drawing with colored effect applied via Instagram.
So maybe I interpreted their surname a BIT too literally, but I had fun trying to come up with a boy fish and a girl fish. I focused on line and shape variation of the same basic design to differentiate the two and i'm pretty happy with the results.