It's not a perfect drag and drop solution... more of a work around for displaying two images next to each other.
I've used the button bar and converted each button into HTML (i only needed two so deleted one).
Before converting to HTML i also changed the button width to inline as I found the next component would hide under it.
I then used an image component and uploaded an image, converted it to HTML and then copy & pasted that into the buttons html.
To make the image a link I used the ui-sref code creator in the 'how to make a page link' in the right column.
*** just having issues with the images displaying when exporting the package, will keep you updated when i figure it out.