This image is unusal in its self, it is a negative view.  This came about while doing my BA in fine arts, with the topic of negative spaces, and I changed it to black and white then inverted the colours, which brought out a different view of the space about us,in the light and dark of architecture.

This was transcribed into a form of etching,
an Aquatint, using the tonal shading to create the image, very much like an photograph.