I cut out the top except for the front yoke. For that piece, I started with a big rectangle of fabric slightly deeper than the yoke pattern and a lot wider. I marked the rectangle with parallel lines for the tucks and fancy stitching.
After this was done, I stitched in the tucks and decorative stitching, then gave it a press. I put the front yoke pattern piece over the rectangle, centering the fancy panel as best I could, then I cut out the front yoke.