I created this model with the idea of a Pre-Heresy Lucius the Eternal in mind. Admittedly it was only loosely based on him; I mostly just let my imagination run wild. Anyway, I use him as the Aspiring Champion for my Noise Marines - equipped with a power sword and Doom Siren.
The body is a Forgeworld Sons of Horus Reaver. His sword is from Hector Rex and the Bolt Pistol is from the plastic Raptors kit. The cape is a cut down piece of Chaos Warrior cape and finally the head is actually the bare head from the plastic Eldar Guardian Squad with more hair modelled using greenstuff.