Photo-realistic portrait of Doctor Strange with intricate details, showcasing hyperrealism and dramatic cinematic lighting, with a sharp focus on facial features against a subtly blurred background. The stoic expression adds depth, as a mesmerizing portal swirls mysteriously behind him, rendered with the stunning clarity of 8k resolution. The overall composition evokes a surreal yet immersive atmosphere, akin to a rendering by a cutting-edge engine, with vibrant splashes of otherworldly energy casting reflections.