a time-consuming exercise! but the finished results are interesting. Some of the blends are not very successful, it would be important to get the right strength of blues and yellows to get the right green for instance. My tints and shades piece has an interesting twist halfway down….a little “spot the blip” exercise..! must have started the 4th colour when I was tired and then just followed along…..also the purple looks much more purple in real life…….