This is the mail I received from Sylocat (the creature's creator, lol) when I asked him for details about SCP 372 (for the model):
'I'm honored! I'v seen some gameplay videos and it's implemented very well.
372's overall biology is closer to reptilian than insectoid. Its body is serpentine and flexible, with eight pairs of limbs that I pictur as being somewhat like gecko limbs, to facilitate its climbing and clinging. The overall body shape is that of something like a cross between a gecko and salamander. Instead of an exoskeleton it just has those abnormally tight muscle fibers that allow it to move so fast. It's green, though that might be difficult to perceive with the lighting in the game.
As for its sensory organ. Instead of eyes and ears, it has a sensory organ that resembles a giant yellow eye, embedded sideways in the middle of its forehead… except the "eye" has no irises or pupils, it is simply a yellow orb above its mouth. This serves as its eyes and ears, but it also allows for electrolocation which it uses to track the pulse signals to anticipate movement of the human eye.
The one overall art-style tip I could give is this: I always pictured it, if one could ever actually get a good look at the thing, it would look rather mundane, or even somewhat silly. This doesn't matter, of course, since you can never get a look at the thing.'
You may find it useful. As I said in other topic, I will start working on a new model soon, hopefully better than actual one,