Entries 2 and 3 are relying too much on the brick pattern - our audience will understand this part of the product. What I like best about #4 is the shadow and the potential it presents in offering a representation of the Wasatch Mountains. One very important item is if you choose to use a single unit as you have done here the unit MUST have two cores, or cells/ To see some examples of these units go to http://www.specblockusa.com/downloads/franklin/CMUguide.pdf.
I like the changes and wish I would have commented to you on actual scale of the product which is 8" wide x 4" high x 16" long. The two smaller images are too small and the large image is too tall. Nice entries and thank you for listening to the feedback.