A vibrant portrait of a female blue tiefling with intricate, lush horns curling elegantly from her head, her demonically enchanting face detailed with sharp yet graceful features. Her skin shimmers with celestial patterns reflecting a cosmic aura, reminiscent of stardust spreading across a night sky. Her eyes glow with mystical intensity, set against her gleaming blue skin that hints at her enigmatic heritage. Her expression captures an intriguing mix of allure and mystery, embodying the essence of a demon anime girl. Painted in a style that blends the ethereal qualities of Arcane with the traditional allure of an oni, this cosmic tiefling from D&D captivates with its otherworldly beauty and strength.