You have now activated the Live Crop™ mode, simply drag the "squares" located on the edge of the image to view a crop, this will show you how the image would look cropped. Tip: You can also drag the crop window around the image to see how different parts of the image would look cropped. (close Live Crop™)
Royalty free image: High angle view of a waterfall in Waimea Canyon State Park, Kauai, Hawaii, USA