One more diagonal shift variation, with a different form of playing with the shape of the connecting tube of paper. Here, the shift is based on a cone of paper instead of a smooth cylinder.
Like my usual cylinder-based diagonal shifts, this model has a flat plane of paper connecting the top and bottom halves of the model, and that flat plane is essentially an ellipse. Because the cone shifts the convergence point much closer to the center of each cylinder, the two halves don’t have nearly as much of a horizontal shift between them.
A second photo, showing an example with just one half of the diagonal shift, showing the internal construction more clearly:
