A vibrant portrait of a blue-skinned tiefling woman with intricate, lush horns curling elegantly. Her demonic features are highlighted by glowing eyes and ethereal markings across her face. She exudes a cosmic, mystical aura that brings to life her fantasy origins in D&D. Her expression is both fierce and enigmatic, capturing an otherworldly beauty. Painted in a style reminiscent of modern animated fantasy art, the portrait merges the allure of a demon anime girl with the rich lore of an oni, enveloped in swirling, cosmic elements that suggest a life beyond the mundane.