Triptchy - We have it first here on CNP in India.
Had seen quite a few of them in ESS and other galleries in NPN and this got to be the stepping stone for us to present things differently. Had been thinking of it and was working on it for a non-nature image some time back. The correlation of images dyptchy or Triptchy is really very impt. Some people use same image and split it into 2 or 3 and few take diff instances of same subject and make it into one ( as in this case ).
Really loved the concept.
You might want to try out "Drop shadow" effect on each of the image to bring in that 3d feel ? Just a suggestion.