So far, so good on the road to quilt completion.
Print or trace the block diagram onto foundation paper, number, and cut out as in the photo.
Important! You have to mirror this diagram.
Trim the seam allowances to 1/2". The extra bit is important because sections tend to shrink a bit during applique.
Mark the seam lines (or at least the corners) onto the right side of your block sections. The easiest way to do this is before you remove the foundation paper. Use a window or light table and you should be able to see the markings through the fabric.
Iron the freezer paper shapes onto the right side of your background fabric and cut out along the curves, leaving a seam allowance for turning under.
Clip into the seam allowance along the curves every 1/4" or so.
Position the background fabric sections onto the pieced sections. The seam markings you made earlier will help you line them up.
Baste through all layers. Don't baste too close to the curves. You need to be able to turn under the seam allowances when you applique.