1girl artist_name atelier_(series) atelier_escha_&_logy bangle blush book bracelet braid breasts cleavage dutch_angle escha_malier flask green_eyes hat head_rest indoors jewelry long_hair looking_at_viewer lying medium_breasts official_art on_stomach open_book pink_hair pleated_skirt round-bottom_flask shirakaba shoes skirt smile solo sunlight tail thighhighs white_thighhighs window