Question: what are the characteristics of a good composition?
Answer: Movement. John attributes our interest in moving objects to our animal instincts. ... 
Size. “The bigger something is, the more important it is in the frame.” If you are really interested in the starfish in the tidepool, be sure to set up your composition accordingly. ... 
Unique. ... 
Brightness. ... 
Shapes. ... 
Color. ... 
Sharpness. ... 
Contrast.