Powdercoat looks like powdercoat. It doesnt look like paint.
I won't say that it can't be done to look like paint, but myself, I've yet to see any PC that does. It's thick, and it looks thick. Kinda like a hosed-on, bad paint job. More noticeable with more gloss.
If you can find someone that lays down a thin, level PC, then it might be okay. Not sure how it would do on a judging sheet.