This 28mm plastic miniature of a Space Marine Sergeant is by "Games Workshop" and comes from the Warhammer: The Horus Heresy – Age of Darkness boxed set by "Games Workshop". The multi-part figure has been assembled wearing MK VI armour and had a resin Sons of Horus "Forge World" shoulder-pad super-glued onto him so as to specifically mark him out as belonging to the Traitor Legion.
The figure was initially primed with "Citadel" Sons Of Horus Green, before being heavily washed with Nuln Oil, and dry-brushed with (more) Sons Of Horus Green. I also applied some "Citadel" Abaddon Black to his shoulder-pads, grenade, Bolt Pistol, backpack, Plasma Pistol, helmet, Power Fist and some parts of his "iconic armour".
The model's power tubes, firearm, and Power Fist fingers were later treated to a combination of "Vallejo" Gunmetal and "Citadel" Nuln Oil. I then gave the Sergeant's shoulder-pads a single coat of "Vallejo" Heavy Sienna, before applying some "Vallejo" Gold and a splash of "Citadel" Agrax Earthshade to them. These areas were later highlighted with some additional touches of "Vallejo" Gold along the edges, iconography and rivets.
As a final touch I applied some "Scalecolor" Speed Metal to the composite ceramite cooling coils of the Space Marine's plasma pistol and eye lenses. These parts were subsequently given a lick of "Citadel" Contrast colour Talassar Blue and Flesh Tearers Red respectively. I also applied one of the many decals found on the "Games Workshop" Sons of Horus Legion transfer sheet onto the Power Fist.
Alongside my Sergeant I have spent some additional time working on three more Tactical Space Marines wearing MK VI armour. This trio are now ready to have all their metallic colours base-coated and shaded during my next dedicated Horus Heresy hobby session, so should be finished within the next week or so. Encouragingly, the remaining six former Luna Wolves for this particular infantry unit aren't that much further behind either, which could well give me a little spare time to start assembling my XVIth Space Marine Legion's Blackshield contingent.
Lastly, I have uncovered a slightly old Giant Robot by "Crooked Dice Game Design Studio" which I clearly assembled a while ago. Having recently pigmented a load of the manufacturer's Killbots (and the first of five SpyBots) in the palette of a Post-Apocalyptic American military force, I thought applying a similar rusty green colour scheme to a much larger subject would be fun - as well as add some extra 'beef' to the automaton army overall...