Making a watercolor chart for Cotman paints

I thought it was about time that I put together a watercolor chart for my Winsor & Newton Cotman watercolor paints. Mixing colors and painting small squares took a little while, but was enjoyable. 

The set that I usually use is the Cotman sketchers' pocket box, which consists of 12 half pans. However, I used and swapped out two of the original paints. My set is now comprised of:

lemon yellow hue

cadmium yellow hue

yellow ochre

cadmium red pale hue

rose madder hue*

ultramarine

phthalo blue

sap green

viridian hue

burnt sienna

indian red*

burnt umber

*did not come with original set

Below is the scanned color chart. 

I don't know about you, but I always find the mixing and blending of colors to be so fascinating.