I've been at work on the bodice and it's coming out well so far - I just LOVE this fabric so much!
The seam allowance of the piping and the bodice meet at the edge - on the outside (right side) of the bodice:
Use your zipper foot to sew the piping onto the garment (below: I've pinned piping to the armhole as well as the neck - that's why you see piping running parallel - I'm sewing the shoulder).
Here's what it looks like once the piping is in place - along with the lining (also in pale pink cotton).