After having worked on the tree posted earlier, I had several questions about where the root system was. This was a result of my having done a couple of welded steel trees with root systems exposed back in the 1980’s. The idea had crossed my mind, too, but the thought of all that hand-drawing or mouse-work was intimidating.
After a while, the fact that I have an iPad Pro and an Apple pen hit me and I got to work trying that combination out … using Astropad and Photoshop. It took a lot of hours, but I think the result is worth it. I have 30″x30″ prints that are very nice. The smaller version on an iPad or phone just doesn’t show the detail in the fine root structure.