I think you're missing her red eye thing!Daru wrote:
Okuu sketch.
I started doing this thinking, "Oh hey, I'll draw Okuu in a cool pose," but now I can't finish it because I can't think of anything good for the background.
As for a background, less is usually more. You could go for like trying to imitate a spellcard of her, but just the red subterranean sea will do fine.