Create a dramatic poster of a fierce female sith lord from Star Wars, standing tall and commanding, with dark flowing robes and a menacing aura. Her eyes glow with intense red, and a red lightsaber is ignited in her hand, casting an ominous light. The background showcases a stormy, otherworldly landscape with flashes of lightning. Her expression is one of power and determination, embodying the dark side of the Force. The art style is dynamic and vivid, emphasizing the epic and iconic nature of the Star Wars universe. The overall aspect ratio is 1:2, capturing the full height and presence of this formidable character.