I did some more thinking, and I may end up trying to do Aura for Halloween after all. What swayed me was finding a color image of her main costume.
I don't know why, but I found the piece much more appealing in brown than in black and white.
The part I'm worried about is the headdress:
She doesn't wear it much, but it's kind of a plain costume without it.
I think I want that ray gun, too.
Wow, that picture really makes her look like a tough chick protecting panicky lil' Flash, doesn't it? Too bad she's actually just being a spoiled brat here. Gotta give her credit though--she's a pretty competent spoiled brat.