Horluk was one of my favorite early Trollblood models, since I saw his concept sketch. I didn't particularly like his dropped scroll (too chunky) but think he has some of the best detail
I originally went with a more traditional blue, along with regular metallics, but wasn't liking how it came out, so, around the time I started these guys, I had switched to both the yellow/ brown/ gold/ whatever you'd call it, along with non-metallic metal.
Since then, I learned to blend the skin color more efficiently, going from around 15 layers of mostly wasted blending, down to maybe six or so. I cut out black (and any blending with black) completely, and, for those who are interested, the blend goes from Bestial Brown to Bubonic Brown to Bleached Bone, with a lot of mixing along the way.*
My metallics have also gotten much more efficient. In both cases, I learned that many of the tones closer to black either don't need to be seen or don't need blending.
*after something like 10 years with the same colors, Games Workshop is going to need to add a lot more than "™" to the same paints for me to bother learning new names... sorry guys, there's a chart somewhere.
...I also might try to do something about his surf board.
Along with the Axer and Doomshaper, the Dire Troll Mauler was one of the early minis that sold me on the faction. I got a lot of mileage out of all of the muscle texture on the model, and, while I've decreased the number of steps involved in blending (see the note above), I still use some of the concepts I figured out on this mini.
**It's okay, the question was rhetorical***
***...but the answer is always "none".