Here's another project which I've based to fit the army, even though it's not on theme, really.
This is my re-working of the lord of the Nazgul. the Witch King of Angmar, from the 1985 Citadel Lord of the Rings range.
The Witch King himself is unconverted, but I replaced the original metal horse (missing, sadly) with a more stately Bretonnian beast. I modified the legs a little to give it a more passive stance, and bulked up the caparison to match. Tolkien had the Nazgul riding flesh and blood horses, so I wanted the horse to look as "normal" as possible. To break up the black, I used different shades on different parts of the model - there are grey-blacks, brown-blacks, red-blacks, blue-blacks, purple-blacks etc though the effect is very subtle. I wanted to give the impression of faded opulence without destroying the darkness of the model, so I mixed gold with dark brown to paint the decoration. I would have liked something more intricate but really struggled with the complicated surfaces so settled for this!