Professor Nyanya (Blue Archive), monochrome line art, long flowing hair with soft waves, distinctive horn-like head accessory, gentle smiling expression, detailed school uniform with bow at collar, pleated skirt, delicate shading, anime style, clean lines, elegant pose, high-quality illustration, character design, soft lighting, intricate hair strands, expressive eyes, studio-quality rendering, graceful side-turned stance, slightly tilted head, engaging gaze, balanced composition, professional draftsmanship, visually striking yet tasteful, emphasizing both cuteness and mature charm, ideal for fan art or character study