Here are my thumbnails for the latest C.O.W:
Here is the full brief:
"Bring to life a creature whose sole purpose is to take life. The Assassins are a special breed of creatures from the planet Gnixxian, a lush and dangerous planet, hunted and used as special weapons against those that have earned the distinction of being high priority hard targets. Your design can range from a small creature that kills in inconspicuous ways, to a stealthy
hunter that overwhelms its prey with strength and speed. As usual, get creative, and it probably wouldn't hurt to show your creation in action."
They're actually less thumbnails as they are progressions of how I came up with the idea for the concept D, an evolution chart of the murderous intent-gnixxian assassin as it were. To give you a better understanding of my workflow I'll detail the steps I took to get to the final design:
I started by searching for references of animals that I would consider to have assassin-like qualities but the only real animal I could think of was the Whip Spider so I typed "natural assassin", "nature's assassin" and "assassin bug" into Google and found some very cool results such as a spider aptly named the Assassin Spider, check it out:
Horrifying, huh?
I then began sketching using the common features that all of those assassins shared i.e. thin legs, small abdomens and cold, dead eyes. Using this method I ended up with Exhibit A - something resembling what it would look like if a Tyrannosaurus Rex had a headcrab for a head. I wasn't too fond of anything in A other than the front legs... or are they fangs? I wasn't sure but I copied them over to the right began sketching again, after a short while B was created. At this point I still wasn't liking anything about the design other than the legs (which I refined a bit more). Once again, I copied the legs over and took a new approach which ended up looking a bit like a scrab from the Abe's Odyssey universe:

Once C had been finished I noticed that the legs didn't really fit the new torso and head (both of which I was quite fond of) so I duplicated C in it's entirety and reinforced the forearms, gave him stronger-looking hind-legs and added some cool finishing touches such the poison dripping and the stripes across his head and legs.
Overall I'm happy with the design. The next step is to go over the concept with cleaner, more defined lines and anatomy to get it ready for colouring.
Stay tuned for Part II of Murderous Intent-Gnixxian Assassin.