It is! Phew!
I was asked about the fact that I hadn't ironed anything yet. Before taking the photograph I gave this piece a light pressing, to see if it really was flat and although the jury isn't out yet, for now, I've decided to let the pieces fall where they may.
When stitching the melons to the large background sections, I've found it easier that they are not pressed because I can easily manipulate all those seams in one direction or another depending on how the melon lays.
Six interlocking rings are complete, and many more to go.
Just musing how I'm going to continue - work in lengths, row by row? work in chunks?
Something to think about while at the gym....