Because of the nature of dice there can be some variation, the layers might not be as evenly dispersed, or the enamel paint blends in different unique ways. Here is a note from Little Dragon:
"After I had tired myself out I saw a woman standing in the waves, she was covered in foam from the sea and had star fish in her hair. She said not a word but would wave her hand to make huge waves. She dove beneath the surface and I followed. To my surprise I learned of an entire world under the waves, filled with life. I watched the sea for a while, sometimes it raged and destroyed the earth, and other times it was peaceful. Always I remembered that its waves are filled with life."