Mini Photoshop project

Back tracking to something I did a while back for my parents (who are missionaries in Africa).  It is a Photoshop creation I did for the cover of their bood.  It is made up of four elements: fire, the earth, a photo of a dead tree and clouds.  I got the idea from another picture I had seen elsewhere.  (my version is way better.)  There really are no fancy tricks here, just some layering and masking.