I was recently commissioned to build and paint Nykona Sharrowkyn, one of the Raven Guard marines to escape the Dropsite Massacre on Istvaan V. He's a great character who has built a small following amongst Black Library's Horus Heresy devotees. When a character shoots Fulgrim in the head, and kills another iconic character in single combat (twice), then you've got a keeper.
The tough thing about translating this character into miniature form is that he is essentially described as a shadow, an absence of light. Kind of tough to highlight someone like that ; )
This all meant that positioning him in the shadows, but being impacted by some light source, was important. I played around with a few ideas, and settled on the model you see here. I hope you like him as much as his new owner.
And there's another one on his way too.
Cheers
Dave