in photography, that would be retouching vs. manipulation.  Once you Manipulate a photograph, that is, change the contents drastically, its no longer a photograph persea....... as, a photograph is a still life of reality captured on film.  Change the reality of what was before the camera, well then, I suppose its a farce.  Its still art, but its not a true to life photograph.  Changing color corrections does not change the actual contents of the image..... so on so fourth, yadda yadda lol.

I still think, most poser corrections are retouching........  once you start manipulating a poser render, to me, thats more like painting.  The sample image of the poser render, well, thats not telling me was it rendered as a sketch, outlined somewhere else, so I cant lable that one, but I'd assume thats more of "sketch art" than poser work.  Unless of course sketched by poser.

Since I'm not omnipotent, I'll wait for the methods used lol.

A poser image ceases to be a poser image, when it wasn't one in the first place.  If you are rendering out a pretty much blank crash test dummy figure in greyscale and take it to a paint program (like i do most of the time) and airbrush the whole thing, it never was a "poser" image in the first place, and could hardly be considered "postworked".  The poser influence is minor....... so minor in fact, its litterally only performing a minescule function in some cases.