They should just remove the orb and keep the dark shadowy outline.
I think the orb should stay but the transparency should be increased. I like the look of the protective bubble, but I also want to still be able to see my character.
I'd also prefer if it wasn't a shadow thing but actually more bright, but what can you expect from a skill that morphs from "Eclipse" and is called "Living Dark", even if that's not very templar-like.
This Bosmer was tortured to death. There is nothing left to be done.