Digital artwork concept art featuring a fierce female ninja adorned with a subtle Prompt Hero insignia on her chest, poised on a rooftop overlooking a dystopian city shrouded in darkness. Her dynamic stance exudes intensity, embodying the essence of a fierce warrior. The scene is depicted in a comic book style with intricate, meticulous detail. Ominous lighting casts dramatic shadows across the sprawling urban landscape, under a stormy night sky. The image captures a sense of urgency and tension, reminiscent of a long exposure shot with a Hasselblad camera, enhancing the dramatic atmosphere.