Today I was thinking of detail as I tried to find a B&W subject. With busy scenes B&W can strip away all that color information and let you focus on lines, forms and shadows. The quantify of shapes, lines and shadows in the fall leaves bring that out.
I'm trying to shoot new pictures for this challenge but cheating a bit and going back to the archive, I found this picture from Ocean City, NJ that I took after dark of one of the rids. There was *so* much going on with this thing and the B&W version lets you see it more easily.