"Imagine Ella Purnell as Lucy Maclean in a post-apocalyptic world. Her attire is torn and tattered, showcasing the hardships of survival in a hostile environment. Her hair is disheveled, reflecting the constant struggle to endure in this new world. The image, created with the utmost realism and quality, captures Lucy in a moment of determination and bravery as she confronts the challenges left behind by the apocalypse. The backdrop depicts a ravaged landscape, with ruins and debris that enhance the desolate and chaotic atmosphere of this post-apocalyptic world."