anime-style, cinematic poster composition showing two versions of the same character standing back-to-back, one side shows a quiet schoolgirl with glasses, tidy long hair, holding a textbook, wearing a clean school uniform, standing calmly with a thoughtful expression, set in a school courtyard during a warm orange sunset, the other side shows her transformed into a radiant and overly sparkly magical girl with a slightly masculine build, wearing a frilly pink dress with oversized ribbons and thigh-high boots, long flowing pastel-colored hair, exaggerated makeup, and a heart-shaped magic wand, smiling brightly, surrounded by swirling sparkles and glowing hearts, set in a dreamy magical dimension at night under a starlit sky and aurora, between them a vertical transformation effect made of swirling rainbow light, floating feathers, and magical symbols, cinematic lighting, dramatic shadows, title text at the bottom in bold serif font: “Two Hearts, One Light”, movie poster layout, ultra-detailed, 4K resolution, best quality