@Randal'Thor with due deference to @Mithical, I don't think it needs
intertextuality. Intertextuality is about the relationship between texts: how one text affects the other's meaning or construction. Asking about the
influence of
Jane Eyre on
Tess would be an intertextuality question; asking how reading one of those texts shapes the reader's response to the other would be another. But comparing how those independent texts portray women is not intertextuality.