Complex sentence: Despite having physically recovered from her injuries, she remained psychologically traumatized, as seen in the post-shooting changes in her personality--once open to others and full of laughter, Greenaway became distant, withdrawn and very tense.
Split into simpler sentences: Despite having physically recovered from her injuries, Elle suffered psychological scars, as evidenced in the drastic change in her personality following the shooting. Once open and full of laughter, Elle became distant, withdrawn and very tense.