The coral pinwheel fabric is one that I bought to use for substitutions. It is the same design as the black pinwheels, but with very different colors.
The "kit" came with two different black prints.
I thought they were way too similar, especially if they were going to be placed next to each other, so I used the coral pinwheel fabric instead of the second black print.
I do not like the grey fabric in the corners. It doesn't go well with the other prints. It is similar to a Fossil Fern print, but with Baroque damask-style curlicues, and it looks out of place to me, both in terms of color and design. I will not be using it again.
Except for the grey, I am very pleased with this block.