Finally decided to color my old Eggor sketch. Also took the opportunity to tweak it a little so it looks a bit better.
But yeah, this is pretty much how I imagined Eggor would look while I was reading the book "Sonic The Hedgehog In Robotnik's Laboratory". :)
Also decided to doodle Eggor's animal form:
Here we have Valentino, uh, I mean Kevin. He's described as being a handsome and sleek red squirrel, so I tried to convey that with this design. He looks like a bit of a womanizer, really. I wanted to make him look handsome but also like he might be a bit of a creep, seeing as he did try to run out on his wife before being captured by Robotnik.
And yes, I based his appearance on the little Ricky squirrels in the games, since in the novel all of the little animal characters are depicted as Sonic's friends, being fully sentient, capable of speach, and making no real anthropomorphic distinction between them, Sonic, and Tails.
Anyway, back to Kevin. I gave him a little cranial implant meant to be leftover from his time as a badnik, which would basically serve as a means for his mind to directly interface with the cpu of his robotic shell. I also gave him a gray streak in his hair meant to be a side effect of him being a badnik for so long.