Through an update to the Google app on Android, Google will begin offering “style ideas” as you go about searching for fashion-related items. The ideas will show in a new section within an image’s page, along with additional “similar” items.
The GIF below shows exactly what to expect, but the point is that Google knows you are using Google Search to find items you may be interested in. Since they have all of this related information to those searches, they may as well add to the experience by showcasing those items you search for in greater detail. That greater detail being as “style ideas.”
Their example is of a bag you might be considering, so image results will show that bag along with ideas for what you might wear as you carry that bag. FASHION.