Curves are everywhere in Nature...but, often one must look close. I have two photos of this tree at Bear Lake, CO in the Rocky Mt. Park. One was made in the mid 60's and the other was made over 50 years later. They almost look the same proving that Nature does move, just very slowly. I printed this in B&W to emphasize the lines and shapes. I used my D-700, 80-200mm Nikkor zoom, CS-2 to open the file and Nik filters to finish this image.