I painted this picture yesterday of a dead butterfly I picked up somewhere in Central America (well, part of a butterfly). Wingspan across the top is approximately 3.75 inches. It may not come out in the painting, but the large grayish spots on the upper and lower wings are clear windows you can see through.
Edited: I found out that it is a moth and not a butterfly–the antennae were missing and I had to guess–so was much of the body, which I slimmed down a little more than necessary. It is called “Forbes’ Silkmoth” (Rothschildia lebeau forbesi) or “Cuatro Espejos” in Spanish.