Scale and Perspective
The first thing I am going to talk about is the height of the first street lamp. Notice how it appears above both the ferris wheel and skyline. This was done on purpose to provide clues about the scale of the scene.
Our brain knows that the ferris wheel and the skyline are taller then the street lamp. But when the street lamp appears taller it tells our brain that the ferris wheel and skyline are further away. It provides clues about the distances between the street lamp the the ferris wheel/skyline. It helps our brain processs the scene more accurately, therefore making the image more attractive.
The second thing to point out are the leading lines. It’s pretty simple. You see the lines on the right side of the photo lead our eyes into the downtown area, which is of interest.
Light and Exposure
Finally, the last thing that makes this photo work is the light and exposure. In my opinion cities look best in this ‘blue hour’ light. By doing a long exposure more light was reflected and collected in the water which gives a cool effect.