Bernini's sculpture was made by David. Bernini's David is known to be quite different from sculptures by Michelangelo and Donatello on the same subject which is David.
Bernini's David is known to bring out more of the emotions in a person and the sculpture is known to have a lot of emotional and it is also dramatic.
Michelangelo's sculpture of David only shows little emotions and it is known to be more intellectual in nature.
Bernini's sculpture of David uses more power or force to show viewer its space but Michelangelo's David is said to be more calm and peaceful giving its viewer the ability to make a distance if the viewer needs to.
How they stroke there paintbrush and how light and dark the color is or how thick it looks and how realistic it is and mostly what is the main reason or a hidden message about the painting.