Like the title,the tutorial is teaching how to kagebunshin..so the point is make an animation art..
please download the material first..and open it with GIMP..

1.cut/copy the ninja  image to the background
2.make 4 or more duplicate like image below
3.save the image (all) and make the other image now..make the ninja smoke...

4.hmmm...u got that??save the image then open your photoscape then select > animation GIF
   then add the photo...

5.Then save the image...and done..!!
and the result look like this (im add the name :D)





                                                

I hope the tutorial will useful for you..

By: Aokiji