What makes Crivelli and Jarillo's study appear more valid than Ekman's?

Read the excerpt below and answer the question. …the leaves dead are driven, like ghosts from an enchanter fleeing, (shelley's "ode to the west wind," stanza 1, lines 2-3) which of the following literary techniques are present in this excerpt? select all that apply. enjambment personification sibilance simile