A close-up portrait of a female demon with strikingly intricate horns and an ethereal demon visage, featuring a captivating blue-skinned tiefling inspired by Dungeons & Dragons. Her cosmic aura and lush, intricate horns elegantly frame her face, embodying the spirit of a celestial being. The portrait emanates an aura of otherworldly elegance, painted with an evocative style reminiscent of Arcane and anime influences, blending the fierce mystique of a demon anime girl with the bold essence of an oni. Her eyes glow with a mystical intensity, capturing both the strength and enigma of a cosmic tiefling.