See the inherent problem with applications like poser is that people with no artistic talent can spew any old crap at the internet.
Though I have to admit, the shear hilarity of picture 14 was well worth opening this gallery in my browser.
:edit: Yeah I'll admit I'm not being fare to the artist. Poser is just crap. True, a lot of people cut there teeth with it. But if you stay with it, you will never get beyond "Mannequin sex scenes" level of skill. It's way to resource hungry and woefully under-documented. Not to mention buggy as all hell. It's good to get the basics of 3d down (Lighting, texturing, IK, Camera XYZ coordinates. But you can get all the same skills from Modding video games.
Granted its not the smoothest, or most well done, at least it gives them a medium to practice on and the fact they took the time shows initative. If they made it themselves. and yes picture 14 is hilarious.