Wow. That is impressive. I think, to be honest, some of mine I didn't necessarily expect to earn a lot and I post because I want to, so when you factor those into earnings, the ones I hope will do well, probably do perform proportionally better - but not always. I do wonder whether I should drop the fun stuff and focus on the money, but some people like the fun stuff. And sometimes one does well. Besides, copyright is hard work and I'm no expert. They take time to research and don't always do well.