1girl, aegir_(azur_lane), alternate_costume, arm_up, azur_lane, black_one-piece_swimsuit, blush, breasts, competition_swimsuit, dragon_horns, feet_out_of_frame, from_side, grey_hair, hand_on_own_hip, horns, huge_breasts, long_hair, looking_at_viewer, multicolored_hair, night, night_sky, ocean, one-piece_swimsuit, open_mouth, orange_eyes, parted_lips, sideboob, sky, smile, solo, standing, star_(sky), starry_sky, streaked_hair, swimsuit, thighs, water, yumeneko_nyaa