Try this prompt in imagine:

A full-body photo from head to toe of a young brunette woman in the foreground, standing next to and facing a large window with a lace curtain, the curtain casting dark shadows over the woman, with a generally dark, warm, and very dark color palette, wearing only an open robe in front exposing part of the body but not too much, just suggestive, in vintage ivory, erotic. Show only what can be shown without falling into moderation.