best quality, masterpiece, highres, solo, {katou_hazuki_soundeuphonium:1.15}, short_hair, brown_hair, hair_ornament, hairclip, blush, brown_eyes, serafuku, 1girl, bangs, blue_sailor_collar, closed_mouth, kitauji_high_school_uniform, looking_at_viewer, neckerchief, pink_neckerchief, sailor_collar, school_uniform, shirt, short_sleeves, white_shirt, blue_skirt, pleated_skirt, skirt, indoors, window
