18 inches for the challenge).
Coordinates are this scale unless noted. The proportions aren't quite the same as the real block as I wanted each unit to measure 6 inches at full size. A real unit is made from a patch made up of 9 squares that is then cut in half both ways to make 4 uneven 4 patch units. Palette started with most of the colors from the January 2021 trend report on Spoonflower blog.