OK, thanks to all for your help and interest and to reply to your posts : this is definitely a photo, not a render, and it's possible that the head and body come from 2 different persons because at a time I was an adept of head transplant
. I've had this pic for quite some time and never used it until now.
It doesn't change much to the problem in any case of course.
And no, I no longer have the background.
I was (still am ?) planning to use her in a scene where she is a young captive from a Germanic tribe and rebelling against her new Roman owners, and being confronted by them. There is nothing overtly sexual in the scene (except her being naked of course).
I might cover her with a light tunic, breasts and all, all the more as her complete nakedness is hard to account for rationally in the scene. Would that make it alright or would it still be a no-no ?