So here are some thank you cards I designed. At the time I was really into fish because of my thesis. Fish were a nice break from trying to visually convey the idea of evaporation. Below are a puffer, a cowfish ( always wanted one),an AngelFish and, an Angler fish. I originally wanted to add an Ocean sunfish as a joke, but it never really turned out. ( One of the people I was sending a thank you to was not a big fan of them...seemed like a good idea at the time.)
Soon several variations of Jellyfish will join this group of illustrations. As to why I will save that till I post the them.