The heck? I'm going to pick up Caprica as I interrupted my viewing way back when.
I thought the series poster would be the face of an early line Cylon, which is how I remember it, but it's the main plot-relevant character undressed and holding an apple. The horizontal crop of the poster is just shoulders and face, but the vertical crop shows the whole upper body, posed so as to be all skin but showing no forbidden parts that would block it from general use.
I get it, it's a story about origins, rebirth and humanity making a choice, so an Adam and Eve type poster is not completely out there, especially given the religious themes and Abrahamic monotheistic propaganda of the series, but still. This is definitely suggestive, and a bit seductive. The actress was 22 in 2009, but the character was a teenager!