It's from a book called Modern Designs for Classic Quilts, by Kelly Biscopink and Andrea Johnson. Ann's Rows and Furrows layout is the one depicted on the cover, and it looks gorgeous!
I am a fan of traditional designs made modern and this book has some great ideas. One design in the book is a flying geese quilt with lots of negative space. I think that's a perfect idea for this half square triangle panel I've been looking at for over a year.
I can see this panel surrounded by black, with a few more Amish-looking half square triangles here and there in the negative space. Okay. I've talked myself into something.