Art is subjective. Graphic design is combining art with science.
A well done artwork brings life to the surface that it is on. A perfect example would be Banksy, the famous street artist who creates brilliant artworks, one after another, on inconspicuous street corners in London and New York.
An effective way to achieve a great impact on the show floor. Use beautiful photos with minimum amount of words. Let the image speak for itself. Juxtapose a secondary static panel in front of it with wording for explanation as needed.