Not at all ready for prime time. Let’s be honest here- the “carving” is more like a scribble with a Dremel tool. To learn how to carve and inlay metals well takes years of practice and very few modern tsubashi can make a living at it. Neither Patrick Hastings nor Roman Urban were able to support their families, and they had spent the years to develop their skills. My advice is to start with copper. Although copper is more expensive than mild steel, it is far more forgiving of mistakes and takes a good patina easily, while a good patina on mild steel may take many trials. Mild steel plate does work very well for sukashi tsuba but learning the saw technique is critical there as well. Kevin Adams sukashi work was not accomplished overnight and, as far as I know, Kevin has also moved on to something that pays the bills. If this was a post about making a Japanese sword, people here would not be so polite. Practice, practice, practice.