A stunning and mysterious celestial portrait, featuring a grand and powerful woman with a luminous white body. Her face is illuminated, with captivating eyes and prominent glowing attributes. The lower half of her form transitions into a dark, vaporous essence, which drifts behind like a comet's tail. The background is an expansive astral plane, aglow with the soft luminescence of starry yellows and reds. The overall ambiance of the image is surreal and mystical, with a sense of cosmic harmony and awe-inspiring beauty.