Henry Higgins believes that kerbstone English in the story Ode on a Grecian Urn?

In "Ode on a Grecian Urn" by John Keats, Henry Higgins does not appear. It is actually a poem that explores the nature of beauty and art through the lens of a Grecian urn, without any reference to kerbstone English or Henry Higgins. Henry Higgins is actually a character in George Bernard Shaw's play "Pygmalion" who is known for his efforts to transform Eliza Doolittle's lower-class English into more refined speech.