Banner Images and Images

In the image below, I have highlighted with 2 red arrows the top two images from a section , are those two meant to be just top banners and the rest of the images below them just normal editable images? If that is the case in 7.1, how I am supposed to know that?! ‽ ‽ ‽ 

There is no name on how to call the two different formatting images either!