Great idea. I've recently discovered pixabay myself. I'm working on finally allowing user-created image quizzes using images on pixabay. It's going to take awhile to complete, though. Once it is, I'll feature this quiz.
Looks like there won‘t be a feature, for some unintelligible reason, the Quizmaster has decided to feature a complete copy of this quiz. The sad thing is that nowadays it seems that people can simply copy quizzes without giving appropriate credit to the original creator. Sad!