One of the most satisfying conversions I've done so far. I went with a "sword & board" build for my Salamanders Legion Champion since they can take dragonscale stormshields in Horus Heresy, which when combined with artificer armour and a refractor field makes this guy about as tanky as cataphracti.
A full 10-man Heavy Support Squad for Horus Heresy. Some adjustments were needed to allow the Proteus-II Missile Launchers I was using to pair up with the Mk III arms, but all in all it came together quite well.
The green zenithal highlighting was done by airbrush.
(Chaos Black > Caliban Green > Moot Green > White Scar > Waywatcher Green)
As opposed to returning completely to black however, areas to be made black were first painted in Mechanicus Standard Grey and then given multiple washes of Nuln Oil.
Primed, basecoated, washed and drybrushed during the spring of 2019. Some conversions propably 15 years old (such as the horsehead with horror legs & ork sword arm). Some new actual Pox Walker stuff also included.