I colored the landscape like I did in the tutorial.  I added a new layer and pasted the train object on.  Once again I used the deform tool to change its size.  The soften tool was used to smooth the area between the bottom of the train and the ground.  On a new layer, I added a planet, deformed it and moved it under the black line area so it dipped into the water.  I added one more planet at the top. I used the freehand selection tool to select the part of the planet over the mountain and deleted it. Then I used the soften tool to remove any jagged edges. There you go.  I'm not sure what it is, but it looks interesting and I had fun playing with it!