1girl alchemy_stars arms_up bangs bikini blonde_hair breasts brown_footwear cleavage closed_mouth full_body gronru_(alchemy_stars) gronru_(day_at_the_aquarium)_(alchemy_stars) hair_between_eyes holding long_hair looking_at_viewer low_twintails medium_breasts multicolored_hair orange_eyes red_hair sandals simple_background sketch solo swimsuit toki_(yoyobozi) twintails two-tone_hair very_long_hair white_background white_bikini