News Courtesy of searchengineland.com:
A summary of changes to image search:
- Image thumbnails now have captions below the images in the search results.
- The URL of the image source is now also listed below the image thumbnail.
- New image-based filters are now added to the top of the search results page.
- The mobile image search design changed the color of the green bubble filters to white bubble filters.
- New Creator and Credit metadata support has been added to image search.
Why should you care? Google typically uses the title tag from the page the image is found on as the caption used for these image search results. So you will want to make sure the title tag on the page is relevant and descriptive of the image. In addition, SEOs should look into the new Creator and Credit metadata to see how that can be used in the case specified above.
Ryan’s Take 
I have to say, the image search interface is very visually appealing. I appreciate the similar search terms directly below the query with related pictures. Notice the rounded borders encircling these terms? It fits the new style of the address bar in the latest version of Chrome.
The image search algorithm could still use some work. The example from Search Engine Land shows what images appear when the term “cold” is searched. Out of curiosity, I tried searching for “hot”. I expected the page to be showing a vast majority of orange or red tinted images. Instead, 90% of the images were of scantily clad women. Only one showed anything to do with the most obvious definition of hot.
Algorithmic flaws aside, the presentation of this new Image Search is quite impressive. I doubt we will see any adjustments to the mobile version of Image Search. Since screen real estate is more important, searchers need to get the results they’re seeking without scrolling through any fluff. Besides, I think mobile Image Search is easy to navigate and tinkering with things might make that more difficult.
What’s the next section to be revamped for Google Search? No one really knows but if I had to guess, I’d bet on Videos. Compared to everything else the Video Search results look a little dated. Some of the results don’t even have thumbnails next to their links which makes them seem oddly out of place. I wouldn’t be surprised if the video search section gets an overhaul at some point this year.
