I made these two images with my iPhone 5s camera last week. In essence they were “targets of opportunity” because I did not have my main camera (Panasonic Lumix GX7) with me at the time. It was after I imported them for processing that I noticed a good comparison — man-made patterns and patterns in nature. Both make interesting photographic subjects. Takes a bit of luck at times — such as with the metal foot bridge — which had the sun shining exactly right to show the shadows on the decking of the bridge.