Ripped Artwork- Do these images look familiar to you?

I came across the portfolio of a user/company called White Darkness, and I’m sure I’ve seen many of these images before, not only on other sites but right here on Blender Artists. I’m positive these aren’t all created by the same person. What do you think? Can you identify the original artists, so that they may be notified?

Here is the link: http://t.co/yxCNPNE5OY

One, two, three.
But that does not necessarily prove any kind of rip off. “White Darkness” claims to be a team - couldn’t those original artists be the team members? Well, theoretically, though highly unlikely?

EDIT:
Yeah, well, ok - it’s a rip off (four), unless Kent Trammell is also part of that “team”…

And some more: Five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen.

http://www.3dtotal.com/index_tutorial_detailed.php?id=1543

IkariShinji - Thanks for the links! At first I thought maybe it was just a team, but I just felt like the number of images I recognized was too large to just be coincidence.

Richard - Thanks for that link, as well! And apologies, I should have scrolled down more- completely forgot we had an “off-topic chat” area!