Complex sentence: The account's page includes a stereotypical African American mammy image as its banner, and a film still of Hattie McDaniel as the character Mammy in the film version of the book is used as the account's profile picture.
Split into simpler sentences: The account's page includes a stereotypical African American mammy image as its banner. A film still of Hattie McDaniel as the character Mammy in the film version of the book is used as the account's profile picture.