Our apartment in Park Slope was about two blocks from Prospect Park, so we went there fairly often during the bright, sunny weather in the fall. I don't remember exactly when this was taken, but it gives a sense of the light, the color, and the overall peaceful atmosphere of the park -- designed by Frederick Law Olmstead, the same man who laid out Central Park in Manhattan.
Note: this photo was published in an Apr 20, 2012 blog titled "#Friphotos: Earth Day."
Moving into 2014, the photo was published in an Oct 23, 2014 Business Insider blog titled "40 Free Things Every New Yorker Should Do This Fall." It was also published in a Nov 18, 2014 Brooklyn Brainery blog titled "Prospect Park: Did You Know...."