Very cool to see someone else with a minifig color chart. I have been working on one for several years now. I have over 60 colors now. Not all complete as you have them. But at least 60+ colors. I need to take some more recent pictures. Also I have never used brasso on any of my figs. Its fun to hunt for those none printed fig parts.
Here are some pictures from a few years ago. I have added many more parts to this list.
Minifig Colors
Dave