What is the author's style in Dream on Monkey Mountain by Derek Walcott?

Walcott uses language and dialogue to underscore diversity in Dream on Monkey Mountain. The West Indian island on which the play is set has several kinds of cultures with different languages. The characters of African descent speak English for the most part, but it is often dialect with some local "patois" words and phrases, spoken by Makak especially, as well as Souris, Moustique, and Tigre. Even their names fall under this category.