YES! Some great work here!!!

Ok....so why are there so many entries in the All-Open category that clearly belong in other categories?  Isn't the purpose of All-Open for those entries that don't fit neatly into the other categories??  I mean, I get that someone may want to enter say a plane or a tank or a spaceship in all-open to 'improve' their chances of votes...what gives?  Help me understand...