I'm biased as I heavily prefer my text games to be mainly text. Portraits, icons and that stuff are nice and I encourage it, but when it comes to the actual erotic content to me you should always allow the text itself to shine and not distract with images that just ruin your imagination. I don't know to the extent of which you plan to use real-life images, but it's only for showing off locations in a limited way; I think as long as you keep the real-life images and AI portraits separate and never have them interact it could sort of work. It's not ideal, but it could work.
thank you for being honest, it was a host of gifs and pictures, but i've noticed the most popular html games, like lost in laminate do very well using subtle pictures with their writing and it pulls off. I've also noticed they don't write heavy paragraphs, which is something i've taken note of.
Thank you for your advice, it means a lot.
I was not thinking of them as interacting, the 3dCG would be for portraits only, the rest of the art for scenes and actions would be via real life pictures