You can see all the different layers at play, which really underscores the level of accuracy involved. The chain, for example, is anchored to a point on the engine so that the angle is correct, even though you won't see that point in the final drawing.
Take a look at this sweet animation of what it takes to assemble one of these, and you won't just get the picture, you'll buy the print.
Aaron Miller is the Rides editor for Supercompressor. He loves the fact that the technical nature of these prints goes beyond anything you'll see visibly.