"Waiting for the Little Prince"
First of all the hard part is to select an image that is suitable.  Images can have land, water, in the 

foreground, and a level horizon is essential.  Also a simple sky I found is most effective.The best images

are quite simple with a tree, buidling, person, etc., prominently appearing on your horizon line.  Below is 

the original image.  It was not ideal as there is a strip of water showing through which can be cloned or 

masked out later.  The important part was the tree which I really liked. 
Now comes all the technical info....