After agonizing over how to make it clear that the three go together, I settled on using Crom and having them all standing on matching Empire Knightly Orders helmets. Crom was standing on one already, but after careful examination, I realized that it was a real helmet that I had extras of lying around.
I made Torstein's halberd using a Chaos Space Marine forearm, some brass tubing, and various weapon parts. I drilled a hole in a Marauder Horseman throwing axe and a Night Goblin spear head, and fitted them onto the brass tubing.
The Daemon Prince and Chaos Spawn are stock builds, but I aimed for heads with big curved horns to match Torstein's helm.
The Chaos Spawn was tricky to assemble because I wanted him to look like he turned recently, so I steered clear of too much tentacly stuff. For his left arm used the one that's morphing into a sword and positioned it in a similar pose to Torstein's sword.
And here's the whole gang just for good measure.
I ran into some trouble with the primer atomizing. But here are the finished products (mostly). I went with a pretty heavy handed black and red color scheme, and chose green and yellow for the helmet so that it would stand out and be noticeable.
At first I painted this guy's weird "tattoo" things gold, which made the model look horrid (my wife agreed), so I went back and re-did them in silver, and I liked them much better that way.
His wings are soaking in Pine Sol. They just had a totally unacceptable amount of atomization going on.
I really like how at certain angles this guy looks like he's staring at his arm in horror. It really works well with the "just turned" concept.
Also, I love painting eyes.
Here they are, from right to left, Lord Torstein the Destroyer, Prince Torstein the Exalted, and Torstein the Fallen. I look forward to trying them out in battle.