Rings like that really are an awesome thing! Where to properly work it into a UI layout like how this one is turning out? Heh. Honestly don't know. Been experimenting with unit frames lately. On one hand I really like the red overlay on the healthbars, it feels kind of tense in a way to watch your team go red like this. It's really attention-grabbing.
Though I'm not entirely sure if I'm won over by it. It's interesting, but they also become a bit jarring when every other unit frame has bars, and here this one comes with a red overlay over the portrait.