I started another thread on the Evil That Lies within on the Transformers forum ,and website Seibertron.com(http://www.seibertron.com/). During the discussions on the show, and toyline that spawned it. A gent by the handle of Spin-Master(http://www.seibertron.com/energonpub/memeberlist.php?mode=viewprofile&u=114512), also signs his post with Dave. Talked about he was one of the concept artists on the show, and being the fan of the Inhumanoids that I am ask if he had any of the artwork available for posting. And he did.

The first is the back to the blister card for Anatoly Kiev, a.k.a. Tank.
http://www.seibertron.com/energonpub/download/file.php?id=32843&mode=view
The next contains a pics of the blister card backs to Nightcrawler, Blackthorne, and Sabre Jet. Also featured unpainted prototypes of the figures for Tank, Blackthorne, and Sabre Jet. Also along with sketches of Nightcrawler, and Herc. We also have an earlier, more vicious design for Blackthorne in his armor. And last but not least, is a sketch of new ally for the Earth Corps on the bottom right who went by the name of BRAIN-MAN.
http://www.seibertron.com/energonpub/download/file.php?id=32844&mode=view
As I mentioned before about plans ,and even scripts for Season Two of the Inhumanoids were made. According to Dave/Spin-Master, things were also planned for the Third Series of the Inhumanoid figures, and the show. And according to Spin-Master, Earth Corps war with the Inhumanoids would've have taken an even darker turn when they encountered the DEVIL himself.

http://www.seibertron.com/energonpub/download/file.php?id=32845&mode=view
Also featured is some artwork of two creatures who could've been either servants of the Devil. Although the big one with the trunk could be one of Nightcrawler's creations. Also featured is some pics of a prototype Nightcrawler figure.
Finally, some sketches of Nightcrawler unmasked. Also it looks like he would've gotten a beast of some kind to ride around on. A pic of Auger with a fully painted Tank. Sketches of an unknown character who went from cyborg, to looking like he was made of stone. An early design for Metlar. And a rather massive, unpainted prototype of one of the show's nastiest denizens. THE GAGOYLE.
http://www.seibertron.com/energonpub/download/file.php?id=32867&mode=view