Washington Square Park Engagement PicturesThere are so many locations in New York that are stellar for engagement pictures, so why are Washington Square Park engagement pictures so great? For one thing, the environment is spectacular. You have gorgeous greenery, a stunning fountain, classic architecture, and lovely backdrops. For clients who have attended New York University, there is also your alma mater in the background!. 1/400; f/4.0; ISO 220; 200.0 mm.