Material is very important to the work. I started using a plywood with much more layers so that I could work back into it, deconstructing it. Using a blow torch to burn through the layers and a screw driver to etch the wood, removing layers and sections of the wood.
I then print from the burnt wood, as can been seen in the image below, different tones are achieved with just the ash and the wood. An image is created from the destruction of the wood. And again the image continues to change as the ash falls off.