I did this for Hobbit in autumn 2007

This is a composite image created with PoseRay, POV-Ray, Blender and Gimp.

The pink version on the right :

First I imported a wavefront OBJ format mesh of La Torre de Pisa into PoseRay 3.

Next I assigned a material for POV-Ray.

Then assigned an HDR light probe in PFM format.

Then rendered, using POV-Ray's radiosity.

The amber versions on the left :

I imported the same wavefront OBJ data into Blender242a, and straightened it.

Then assigned the texture of the planet Venus, which gives a detailed marble texture with dark amber colour.

Then I set lighting, specularity, ambiance, and rendered it as a wireframe, to create the architectural line drawing effect.

Lastly, I opened a new image in Gimp 2.2, and pasted in the pink version, then the side elevation and plan of the amber version.

Then I added the text, and applied a canvas filter.