1girl, alternate_costume, armpits, arms_behind_head, blue_hair, blush, cropped_torso, ebifurya, fake_horns, grey_eyes, grey_hair, hair_between_eyes, horns, i-203_(kancolle), kantai_collection, long_hair, navel, neckerchief, one-hour_drawing_challenge, open_mouth, parted_lips, pleated_skirt, sailor_collar, school_uniform, serafuku, shirt, simple_background, skirt, solo, stomach, twitter_username, white_background