To make the proposal yourself, there is a link to hit near the bottom of the full page for the image.
You have to go to the page dedicated to that image, not this thread. So click on the image above and then click where it says "More photo details", and that leads you to the right location. Scroll all the way down on that page and a few lines up from the bottom you will see a link that says Move this image. That is where you can make the magic happen, subject to mod/admin approval, of course.
