I think there is a software called Fuse on steam, allows you to create your own 3D models as far as I know, I've seen a lot of personalized models everywhere and I always assume that's how they make em.
I am friends with Maxxy and Roxy and I know neither of them and would be happy about seeing a naked femsniper model... trust me, I asked! I was the first person to acquire her. But who knows, sooner or later one might show up.
hehehehe you know I have a friend and always wanna some sexy pictures of femsniper but after some time it was boring and little weird that his model is naked and fem sniper is still in clothes, so ... I just got this idea around 3 days ago... then was enough got some idea, make few posters, spend some time at Gimp or Photoshop and done... I really hope that someone will make naked <font>femsniper</font> model, then it will be easier work posters like this