On your left you will see "Fluffy". "Fluffy" is a brass scorpion conversion made out of two Defiler kits and a Soul Grinder kit. As of now he has been primed and started painted but hasn't been touch in about 2 years. There is a tutorial over on the Works in Progress forum.
Well then I just realized I have 65 photos for this guy so I'm gunna break it up into 3 or 4 posts just to make it easier to view.