1girl, arms_behind_back, black_neckwear, blouse, brown_eyes, brown_hair, fading, headband, long_hair, long_sleeves, neckerchief, one-hour_drawing_challenge, one_eye_closed, ooarai_school_uniform, open_mouth, red_headband, school_uniform, serafuku, simple_background, smile, solo, twitter_username, white_background, white_blouse, wind