Of all the LOTR mini's I've always loved these guys the best. Nice sickly green you got there. And the grey cloak is nicely done. But I'd think the sword could of used a different color than the rest of the green surroundings. If there is some kind of lighting effect, then shouldn't the hilt had some green hint as well? Same goes for the crown. But still, overall, very intimidating.
Nice idea and a talented application of the idea. However if the sword is supposed to emit such a strong light the blade and/or hilt would need to be painted much brighter. Otherwise: very good use of colours.