I really like this composition. The car is the emphasis of the photo, its the first thing I saw. This Image looks so natural, they're a couple going through their everyday life. The picture has a 50s or 60s theme, judging by the car and the way the two people are dressed. 

There is some asymmetry in the photo, its not completely symmetrical but the two sides, if split in the middle, would balance each other.  There is little movement and no repetition, rhythm,  or proportion. There is some unity in the photo. The way the picture was taken, and what goes on in the picture, it just feels like everything goes together.

Picture by: Edward Quinn