Alex, thanks for doing the mystery quilt series for all us homebound quilters. I've been quilting since the '70s but not taken any basic classes. What you're doing, sharing how to accurately make these basic blocks and explaining the shortcuts is fantastic. And especially during Covid, doing sessions every other day has kept me involved and learning the correct way to make 6" quilt blocks. You should be sainted!!!
Here's what I've made so far using some old KF fabrics I already had.