As I worked, I frequently asked Zak for description. I know that the artist who chose this challenge felt that only the book should serve as inspiration, and Zak has read them all. I also purposefully didn't seek out images until I was finished. Here's what I found today, with thanks to Google Images.
According to Zak, a Balrog is a tall creature of shadow and fire. It is epic and ancient, like a titan. Its presence is felt as much as seen, and it is an embodiment of evil. Zak mentioned shadowy wings and a fiery whip, and horns that curved down, all of which I see here, and very much as I envisioned them from his description. He also mentioned a sword. He said in anger, the creature flames. A flaming necklace!
I wanted the necklace to be tall, but not solid, as I wanted to try to create the insubstantial shadowy aspect. I used large Swarovski jewels, in Cathedral, Magma, Crystal Copper and Ultra Orange to represent the flames and matte black cylinder and seed beads to bezel the jewels, encasing my "embers" in ash and charcoal. Those matte black Czech Firepolish beads actually felt like coal in my fingers! I tried to imagine wings unfurled as I joined the bezeled jewels.
I wanted lines that drooped, as I imagined the horns did, and created those with the draped sections of coal black Czech firepolish beads. I tried to create the flame-like whip imagery with graded bicone tassles in flame colors.
OH! I almost forgot to mention, once again, all the the Swarovski jewel components in this necklace came form my friend Doris Coghill. She's got a WONDERFUL selection of interesting and unusual things, at reasonable prices. Visit her rivolis and jewels at : http://www.beadsbydee.com/Catalog/Swarovski-Rivoli.html