Another problem that I noticed is that the CGI pictures, when compared to the picture of Kristin Kreuk, don't show any texture on the skin at all. You can tell that Kristin has pores on her skin because it has slight changes in lighting all over, and she even has a few very tiny freckles. Furthermore, while she has a very pretty face, it is not perfect in any sense - she has very slight jowls and one cheekbone protrudes just slightly more than the other. The CGI images have none of those minute details, the tiny imperfections that make the image of Kristin Kreuk look human.
Also, the eyes on all of the CGI images look to be reflecting a bit too much light.