I wanted to play around with painting and engraving. This is my first experiment:
I started by spray painting the canvas with red, orange and yellow:
and then I covered the whole thing in black spray paint:
Then all I had to do was find a cool image, invert the colors (greys) and run a very light engrave over the canvas with the glowforge.
The colors are more subtle than I thought, which actually looks great for this. However, @evansd2 had a good suggestion of putting 2 clear coats over the colors before I apply the black. This would preserve more of the color. I will play some more this weekend and maybe post something in “Beyond the Manual” with some settings.