I’ve only seen one other comment about this online, but it looks like it’s getting to other people, including me (sometimes). Seems that Google is testing a new Image search UI. The search results page looks the same, but when you click on an image it looks like this:
Some of the features of the new search results display:
It doesn’t seem to be everywhere yet, I opened a new browser window and got the traditional image search, but hopefully the new results will roll out to everyone soon.