As a boy in Indiana I walked down the street and was struck by all the tree debris strewn about our world. We had the long, skinny Catalpa beans and the “monkey brains” as my kids call them and then the innumerable arboreal caltrops put out by the sweetgum tree. I had no clue at the time that I would find these such a marvelous subject for macro photography.
Technically, this one is fairly difficult. There’s a lot of depth along the z-axis so aperture as small as you can pull off.