The nice thing about this image is you have to take your time to give it a good look to find out what's on it. I did and at last saw what I was looking at, especially that dark area in the middle.
So much going on I don't know what to think. Which makes it for a fun photo. I do see a smiling girl in the background and what looks to be a person rushing by.
This is weird - was that a "lucky shot", or did you actually "see" this? Amazing! I first thought the main dark object was an old paper press or printing machine of some sort.