I'm not the biggest Riddick fan in the universe, but I did enjoy the movies (other than watching Pitch Black for the first time when I was younger, and had the crap scared out of me).
I knew when I started this that I didn't want to create the image everyone was going to create...so I ended up going in a stylistic rather than realistic direction. I knew I wanted Riddick in silhouette, and I wanted to try drawing the aliens (as I haven't done any dragons for a while and I kinda miss it).
Done with Prismacolors and Copics, with some touching up in Photoshop. I had to scan it in four pieces :/