A mystical spirit dragon, sculpted from swirling clouds, soars gracefully through the night sky under the glow of a blue moon. Its ethereal form exudes an aura of enigmatic elegance and majestic power, embodying the rare magic of a hidden world. This illustration captures the essence of wonder and mystery in a Studio Ghibli-inspired Anime style, with a color palette of vivid green, black, white, blue, and yellow set against a medieval backdrop.