character: niiyama_satomi_(Hibike! Euphonium), kyoto animation style illustration of Niiyama Satomi, mature anime style, long face, mature and longish facial features, brown hair, parted bangs, no bangs hanging in the center of the forehead, medium-long hair neatly and elegantly tied back in a style symbolizing an intellectual working woman of the time, bluish violet eyes, lavender eyes, cool-toned purple eyes, thick eyelashes, high hairline, longer distance between hairline and eyebrows, center part starting high on the crown, mid-30s, medium breasts, cgptbg, 1girl, very long almond-shaped large eyes, eyes extending long from the inner corner to the outer corner, eyes that are about 15% larger while maintaining vertical width, large eyes with naturally open upper eyelids, lower eyelids gently sloping from the center to the outer corner, the line of the lower eyelid is clearly visible, outer corners of the eyes are softly rounded, gentle sleepy-looking drooping eyes, soft eyes in the style of Kyoto Animation, iris occupying 60-60% of the eye's width, a bit of the whites of the eyes visible above and below, delicate eyelashes, medium-thin natural eyebrows, slightly thick natural eyebrows, the start of the eyebrows is not too thick, gentle arch eyebrows, the peak of the eyebrow is not prominent, soft and natural eyebrows, natural hair flow, elegant and mature eyebrows, wearing a large hooded pure white cold-weather bench coat over her private clothes, the voluminous feel of the loose coat covering the body lines and detailed expression of soft wrinkles in the padding, gently adjusting the front zipper button with her right hand, a bright, full smile shining vividly and enjoyably while blushing slightly at the piercing cold of the space, a sweet and lovely expression full of happiness, a neat appearance, the surrounding blue neon lights dramatically and beautifully outline her white coat and gentle profile, inside a mysterious ice aquarium expanding in a world of minus 20 degrees, a superb view of the ice aquarium, a deep wide-angle perspective composition capturing a narrow passage surrounded by high walls made of ice blocks from the front, fantastic futuristic lighting from vivid blue fluorescent lights and neon lights on the ceiling, shallow depth of field (the woman in the foreground and the ice wall are clear, the background is softly blurred), the wall surface of rectangular transparent crystal glass-like ice blocks stacked in layers occupying a large part of the left side and background of the screen, overwhelming detail expression of real sharks, bonito, and black silhouettes of schools of small fish instantly frozen in their swimming poses trapped inside each ice block, the solemn and cold reflection of light shining dull blue on the ice surface, the rough rock-like white ice wall like freshly carved snow occupying the right side of the screen, vivid sky blue paint and large blue fish illustration designs covering the ceiling, large bokeh of pop decorations with small round orange and yellow polka dots, the sparkle of another bright exhibition room seen at the end of the passage, the tense, cold, and humid atmosphere of below minus 20 degrees, a top-tier snapshot with a sense of presence like a scene from a movie, one beautiful woman (Niiyama Satomi) standing in the center foreground, looking back at the camera and smiling gently, anime illustration, great quality, best quality