Guy 3 of the Raptors of the Legions series: Struthios of the Alpha Legion, the "Dragon".
You'll agree with me in that making an assault marine "stealthy" isn't exactly easy. Of course they can blend in shadows and attack by surprise, but they've got twin V8s powering their jetpacks, so when they move in, they make noise.
However, even the Alpha Legion needs "doers", enforcers who, when the time is right, make a grand entrance and do it cleanly. Struthios here has a true passion, though: bird-hunting, something patent on his trophies. You can see Raven Guard, Howling Griffons and Raptors' helms and badges, a Dark Eldar Scourge wing and his greatest pride, Baharroth's wings (that's his skin stretched across them, too). You'll also notice the spirit stones on the wings have been defiled.
I like Struthios, and I'm not even that big of an Alpha Legion fan. He's scaly, he's not too Chaos-fleshy (AL tends to be 'cleaner') and he looks menacing. Job accomplished, if you ask me. Now for the Night Lord. He's a loud one, he his.