Don't know my alloys, but the casting is sharp enough. Couple of places where it's not - the berserker's spiked shoulder pad, for example, and a couple of them have quite broad, flat faces (more the style than a flaw in the casting).
Otherwise, it's either my painting
or the fact that they're blown up to 3 times actual size - take a look at the comparison shot further down the page, where they paladin in armour looks much sharper at close to 1:1 size.
David - more for you to kill down a dungeon, I suspect