Complex sentence: Gale was a member of the 2009-2011 RSC ensemble: the critic Michael Coveney described her as "brilliant at the adolescent sulkiness of Juliet".
Split into simpler sentences: Gale was a member of the The Royal Shakespeare Company's 2009-2011 ensemble. The critic Michael Coveney described her as "brilliant at the adolescent sulkiness of Juliet".