True, its confusing.
Most 3D artists rarely do a proper sketch. In that light I feel that a reference board should have sufficed as a concept sheet, since most of the concept is realized directly in the sculpt.
Maybe something to consider in the next art war possibly for the 3D art section?
On the 2D side concept to final seemed more readily apparent.
I appreciate all the art, and personally I'd have a hard time picking any winners at all for a contest with so much variety.
To me every submission made in this contest feels like a winner in its own right.
And I don't have any intention of getting anyone disqualified mind you.
Heck I'd increase the 30 to 60 (maybe even 90) and have more rounds just to celebrate all the uniqueness in this one contest.
It was great seeing all the ideas come to life.