1girl antenna_hair blue_sailor_collar blue_skirt blush brown_gloves closed_mouth cowboy_shot ebifurya gloves green_eyes grey_hair highres kantai_collection kinugasa_(kancolle) kinugasa_kai_ni_(kancolle) long_hair neckerchief one-hour_drawing_challenge one_side_up pleated_skirt sailor_collar school_uniform serafuku short_sleeves simple_background skirt smile solo twitter_username v white_background yellow_neckerchief