No she's not.
Money is everything, as long as she's paid good money she will apear with much smaller even in micro lingerie.
I found some new pictures, this is new, mean she's not retire.
Found some images of her_few years back.
https://www.denunciando.com/fotos-y-modelos-73/894965-desfile-chamela-costa-rica-2014-con-ana-cordoba-y-juliana-herrera.html