How has Eliza developed as a whole individual

Eliza has become a much more self-aware woman. When Eliza comes down, she looks self-possessed and very much at home. She uses the genteel accents that Higgins has taught her. Higgins is furious and claims that he has made her what she is. Pickering assures Eliza that he does not think of her as just an experiment, and she expresses her gratitude to him for everything, especially for teaching manners to her. She adds pointedly says that Higgins could not have taught her such manners.

Eliza says that the difference between a lady and a flower-girl is not in anything that she does but in how she is treated. Pickering always treated her like a lady, whereas Higgins has treated her like dirt. Higgins claims in response that he treats everyone like dirt.