The color wheel here contains all the hues however not in the correct order. All of them are in right order, except for the orange red and red. They have to be swapped and then it would look perfect. The value scale is not from what to black, but it is from white blue to black blue and is stepped perfectly. The complementary scale utilizes the correct complementary hues: purple and yellow. They are mixed together well as well, having a desaturated yellow and a desaturated purple, and a neutral gray as well.
griggzor 