Leading lines is a way to draw the viewer's eyes of a photo to a particular location such as the main subject or focal point. In this photo, the leading lines themselves are actually more of the subject drawing the eyes to the center of the frame. This is one the rules, or rather, guidelines of composition techniques. This photo was taken with the Galaxy S7 Edge on a forced excursion when my car was in the shop - made the best of a bipedal expedition. The SOOC HDR (straight out of camera high dynamic range) is rather decent as well.