I painted this guy up just before summer, you can see work in progress HERE and HERE. I heavily modified the model's pose, cutting most of the leg joints and pinning them in several places. Frankly, the original pose is awful. No matter how you position it, it looks like he's flinching away in terror.
I try to make most of my models have a dynamic pose, but I think this is one of the most successful. I'm really pleased with the way he looks from all angles, and the model conveys a sense of confidence and power that makes for a great centerpiece to the army. I magnetized the weapon hardpoints so I can change his loadout. He looks a little ridiculous with all this gear on, but he's certainly built to kill.
I've been experimenting with asymmetry in a lot of my recent projects, and I think this one works well. There's something about the single red arm, and the contrast against the white, that I find really appealing.