What makes WOW work?

I asked my students what makes a WOW (Wonderful Original Work of Art) work of art. 
I felt that if I set the criteria for WOW works of art, only my personal aesthetics and preferences would be recognized. I wanted to make sure that this doesn't happen. So, I wanted my students to create the criteria for WOW art. 
As a class we looked at student work, and discussed what makes it WOW? They came up with a list of criteria. We discussed each point and came up with a final list. 
The top item was UNIQUE! All the students agreed that a WOW work has to be unique. It has that a special element that you have never seen before. They also realized that a can look and mean something different for each artist. So, we added that WOW works CAN have these items. 

I even have different displaying options for my students on where they want their art to be displayed. They can pick art show, displayed in school, and community show. I feel that children usually do not have a opinion in where their art is displayed. I wanted to make sure that I am honoring their decisions and feelings with their art. It is important.