Double post, baby.
Here's a concept for the "tusk demon", that was presented as a single frame (or a couple frames..) by Vader in 2005-ish (does anyone still have them original frames???). I took that design and ran with it and here's the result.
I was going to make it into a sprite, however, I already have 2 enemies in my project's bestiary who don't have their eyes visible (they got visors) and have mechanical thingies on their legs, so I decided to reject this idea. I'm currently in middle of redesigning this monstah to a new, more organic form.
If any sprite artist out there is inclined, this would be very easy to create via frankenspriting- all you got to do is combine bits of the Doom 3 pinky sprite (that's circulating here and there, I believe it was Frankenstein-sprited by Vegeta for the Doom3 TC - it's sprites are definitely in Alter's Soulcrusher), Hexen's centaur's body and mechanical legs from KDiZD's robo pinky (drawn by Neoworm).
BTW, I hope someone uploads some concepts of their own to this lil' thread, I don't want to spam this place with only my stuff
don't want to seem like an ego-centric... too much