How did alexander calder use the element of art and principles of design in his sculptures?

Alexander Calder used these elements through the following- 

1) They have a variety of shapes
2) They have symmetrical balance
3) They have repeated shapes and colours that create unity

Personally i think it is a

“the first decision that led to brutus’ downfall is when he decided that he would join the conspirators in their plot to kill caesar. the plot did not work. the conspirators had to flee for their very lives. the second decision that led to brutus’ downfall is when he refused to listen to cassius. “ i hope this information you.