I used the Herald that was left over from my Skull Cannon (because I didn't want to build the Blood Throne), supported the raised foot, took away his chain and have him an extra sword. All the better to decapitate his victims as is evidenced by the pile he's stepping on.
Now I don't quite understand why but he has come out darker than my Bloodletters but it's cool. I like the darker look and I may try and get my Bloodcrusher riders to look like this because I'm liking the darker colours. It keeps the typical Khorne scheme but with a twist and you know I love a good twist.
I added the purple tassle to the bottom of the skulls as a subtle nod to the hatred between Khorne and Slaanesh. You may notice that I didn't repeat the heated blade that I tried with the Skull Cannon Bloodletter and that's because I don't like it. I'm wondering whether to go over it or not but that's another story.