You know, I'm pretty sure the Slig skin you found, Chris is pretty much on the spot.
However, I did make a few touchups. I smoothed out the skin, making it look less pixelated. I also added a darker green and a more yellow tinge to it.
I also made a bit of an adjustment to the pants and tentacles (?) and removed Abe's tattoo.
Original Slig:
Improved Slig:
Abe:
EDIT: And yeah, Abe's pony tail is there. You just can't see it.