ABERCROMBIE is an old forest full of deadfall, some very old metal, and a dash of ineffable mysticism. Sheer base is packed with gunmetal and copper microflakes, black and frost-blue microglitter, and blue/green iridescent sparks. On the nail, it reads as about halfway between "zooming way out on an antiquarian topographical map" and "something bronze that's been thirty fathoms deep for a few centuries." It is exceptionally glittery, and is a great alternative to the usual black/gunmetal dark neutrals.
Also, if you're AT ALL into fantasy of the "warring nations, subterfuge, everybody carries a sword" variety, Joe Abercrombie's First Law trilogy is to GoT what GoT is to LotR : dirtier, grittier, more real, more personal.