masterpiece, official art, 1990s anime, animated series style, Amamiya Toshiko, mature woman, fox eyes, sharp heavy-lidded seductive gaze, medium-length wavy hair, brown hair with ash gray and silver streaks, hair parted in the middle, voluminous and slightly disheveled waves, two loose spiral curl locks framing the face on each side, wild strand sticking up at the top of the head, hair flowing loosely over shoulders, natural windswept texture, large spiral coil drop earrings, dark navy pinstripe blazer, white button-up blouse with wide flat collar, arms crossed, cool composed expression, muted teal color palette, clean ink linework, cel animation, soft cel shading, fluid anime illustration,