I think- in terms of a kind of PR image intended to appeal to a wide demographic and really promote rather than document EBF - I'd be really,really happy to see an attractive woman, maybe late-thirties (ie older thatn the average model) tandem feeding or solo feeding.
Looking at the camera is great (less so when mimicking the traditional 'looking at the consumer prone porno pose, imo) but I would definitely art-direct it with her upright or lying on her side, with the deliberate intention of avoiding that 'splayed' idiom.
If I were the art director, I'd like to see, for example, someone like (gaah, searches round, has to commit, though not ideal) Jo Whiley, who's dyed and done, no scary hairy armpits , has a certain (absolutely certain, in fact) beauty, known to be smart. And who would never (I'll venture to say) do anything that could reinforce the common assumptions about what women's bodies are for.