|Ducks are cute.|
underlining (Imperial Batiste), the fashion fabric (poly shantung from fabric.com), point de'esprit tulle to underline the lace (from Joann) and Chantilly lace (also from JAs). All of the layers except the lace were basted together and treated as one in construction. They were seamed by machine and the seam allowances were catchstitched to the underlining. In this case, the underlining serves as a structural component to support the fashion fabric, as well as hiding the catchstitches. The catchstitching secures the seam allowances and finishes them.
This was such a fun project and I am so glad that I got to do it! I hope you enjoyed these little tidbits. I'll answer questions in the comments.