Cheshire

Because one should draw a variation of the Cheshire Cat at least once in his life. Here's my take.

It could be I've been playing too many ego shooters lately (I suck at it, but I'm learning), but I somehow had this idea to make it a critter one would see in such a game. Prey meets American McGee's Alice or something, I dunno.

The Cheshire has a sickly skin that is, except for a few patches of spiky bristles, completely furless.

Cheshires are known for having really crazy colors. Since most people do think of trippy colors when the Cheshire Cat is mentioned, I'll call that the "default color". Default colors are... an eyesore.
Normally one can't tell what color they are, as their skin constantly swaps pigments to blend them with their surroundings. Not only can it mimic colors, but to a certain level structure as well (much like an octopus is able to alter it's surface).

That so called default color of a Cheshire can only be exposed under electric light. The flourescent markings can be seen in the dark as well.
The most common markings are stripes, tho they can have spots or a combination of stripes and spots as well. The light/dark pattern on the base color of the fur also varies from one Cheshire to another.

The base color and the color of the markings are -ALWAYS- a complementary contrast in color (red/green, purple/yellow, blue/orange, ect).

[I'll upload another pic of some color variations later.]

Like hyenas or komodo dragons, their spit is packed with bacteria, causing a bite to become infected badly very quick.
When calm, the face of a Cheshire resembles that of a human, the (in)famous grin indicates an attack. The jaws contain two rows of razor-sharp teeth and can be replaced should they break or get lost otherwise.

They live and hunt in packs of up to fifteen members and eat everything that qualifies as meat.