Original sentence: Her fantasy works (such as the Earthsea series) are more concerned with the human condition than the works of traditional fantasy authors (such as J.Tolkien), and they often explore political and cultural themes from a very "un-Earthly" perspective
Edited sentence: Her fantasy works (such as the Earthsea series) are much more concerned with the human condition than works by "classic" schi-fi authors, and they incorporate a far more developed political sensibility than is common in science fiction