1girl, alternate_costume, armpits, arms_behind_head, azur_lane, black_sweater, blue_eyes, blue_hair, breasts, brown_pants, closed_mouth, feet_out_of_frame, long_hair, looking_at_viewer, medium_breasts, natsuki_(tyuiojl), pants, presenting_armpit, sidelocks, simple_background, solo, sovetskaya_belorussiya_(azur_lane), standing, sunlight, sweater, sweater_vest, twitter_username, very_long_hair