It's not that I don't think I can do what the costume is, I just wanted to redesign it. So yea, I would tell the judges that I just wanted to make it look more sinister than it already was.
I'm trying to make a male and a female version, the male version is only deviating in color while the female I'm almost completely re-doing.
The female doesn't look evil enough for me, she seems too much like a WoW character (since they're both made from blizzard). I just wanted to give my take on it a bit. That's my only real reason for deviating.