This is my experimentation. It was easier to mix to get the different values. Looking at the scale helped figure got that Values I should focus on. There are few things that I would fix.
Mixing the paints was very difficult. I had to start over about 2 times before I got the feel of what do do. I thought it was easier instead of painting one square, to paint a whole row, switch contained about 4 squares. I was able to pick out which parts I liked. This is the outcome:
This helped me understand the scale value more. Hopefully, I am ready to move on.