My fist impression of The Stars of Never Seen is something of a mix between the epic doom style of Candlemass - especially within the vocals - and the more varied traditional metal of Holy Martyr. Actually the Holy Martyr comparison is the most straight-forward that I can think of; both of their styles could be called epic metal (or folk metal without the folk, as I said on my article about Holy Martyr). They both use traditional themes and sounds of heavy metal (although a little more on the war and sorcery side, like power metal) but add a very flexible vocalist(s) that gives the songs a bit of that 'epic' feel. Once again, it's a hard sound to describe, but it works amazingly for Crescent Shield.