After doing that for a while, he decided painting was next on the list.
I'll have to take a picture of the painting, but this one he is starting became a rainbow, The Eiffel Tower, a red ghost and Ancient Egypt (his school has themes each week and Europe and Egypt were recent ones!).
He's a such a great age because he made almost no mess, and when he was finished painting, he put the lids back on the paints without even being told.