How does Caryl Churchill use imagery in Cloud Nine?

The play uses a number of unconventional techniques to create its effects. One of these is for some of the characters to be played by actors of the opposite gender. This imagery reinforces the theme of undermining gender stereotyping. For example, Edward as a nine-year-old boy is played by a woman, which visually reinforces for the audience the notion that Edward does not behave in the way his Victorian family believes a boy should.