It is very easy to replicate. You just take a stack of any same sized blocks and then make two cuts with your rotary cutter to create the four shapes. They then added the sashing and sewed back together in the opposite order of your cuts. (or you can make the first cut, add the sashing and then sew those back together randomly and then cut again, add sashing and then sew again) I made one that was a crazy 9 patch years ago and it was very easy.
And here is one pin that shows how to mix the shapes to get the scrappiness (although for a different type of quilt) :
https://www.pinterest.com/pin/AY1lHW...oV-ojKQSpSNJw/