let's see...we had spools of thread, bok choi, fruit and my own response, broccoli. In this case I was working on an unusually shaped scrap of paper. I wanted the darks and lights to play against each other to create drama. And....I had the green/violet combo in my brain. The tops of each floret are a kind of bluish-whitish-greenish. Millions of little pieces. The goal: to indicate broccoli without too much detail.