Having hastily read some of the excellent material on the flashofred2017 challenge, I went looking today for leading lines. At first, surprisingly difficult - I realised just what a 2D photographer I am - chosing compositions that have little depth to them in the main.
It took my lunch time outing to find a suitable subject, and then three came all at once. The passage through by the market area of town seems well used by cyclists and I caught one coming the other way with a lovely shadow on the wall, but this is better for the lines. Ill post the other in my extras.
Agreed, leading lines are hard to find. I usually find them by accident. Yes, many of your images are 2D, but just looking at your Jan 19 - 28 posts, I see effective use of depth ranging from inches to dozens of meters.