Question

Which was not a main theme of the renaissance? the rising status of the individual. a return to flat, two-dimensional figures. a return to the naturalistic style. the revival of classical styles and idea?

Answer 1

The 5 themes of the Renaissance were Humanism, Virtue, Rationalism, Secularism, and Individualism.
The answer to your question would be "A return to flat two dimensional figures" 

This is because individualism and a little bit of virtue are involved in The rising status of the individual.

And the revival of classic styles and idea was part of humanism deriving from the Greeks