1girl bangs bikini bikini_top_only black_bikini black_hair blush bracelet breasts cleavage cloud commentary_request cutoffs day denim denim_shorts green_eyes heart_o-ring heart_ring_top highres idolmaster idolmaster_cinderella_girls jewelry jorori lens_flare long_hair lying medium_breasts on_side outdoors shibuya_rin shorts sky smile solo swimsuit unfinished