Image for Master project and other

I noticed that the Master project and others do not have setted image.

I just ask does someone have a special image for Master project (and for others) and if you agree using a this image for example (same or similar) at the same way, of course can be regulate text for country or without text for Worldwide. How you decided, or have a deal, or based at your opinions. It's not a problem to create a default image. In advance thanks for your replies.