Sketching with Eraser in Procreate

Thought I'd try something different............sketching by erasing color.  There may be a name for this but I can't seem to find anything on it with search terms I've tried so far.

It's basically starting with a dark background and lifting or erasing to produce the image.

With this one I used the Sketching / Shading Graphite tool - large and laid in the dark background with black.   Then I used a 6B Eraser brush tool to remove color using a variation of pressure for the different light values.