I've seen a few folks do the "aura" lighting effect, especially Necrons, and I hadn't gotten the appeal. Then I saw your full army picture above- from that distance, and that angle (aka, how tabletop minis are generally viewed) the lighting effect looks absolutely phenomenal. It reads exactly as it should. Beautiful job, and I'm sure you'll only get better with practice.
Though, one small criticism, the pink power axe made me giggle more than it probably should...