I also worked the background filling stitches. A lot of times I will use wrapped brides for the filling in the back ground but I wanted this more open and lacier there so I just did twisted ones. I also worked on odd and even spirals. I set a small piece free from the pattern so you could see the background I hope a little better.
Filling= double net stitch
an example of single net stitch (filling four) is here the only difference is that in this one you go through each loop twice instead of just once.
background twisted brides
For the very center of the flower I used this stitch it is a mixture of twisted brides and blanket stitch after making 2 1/2 brides make 4 blanket stitches then finish the twisted bride. Diagram is working top down I was working flower bottom up. Thus the reason for our blanket stitches being opposite.
For the parts surrounding the center of the flower I used
Filler #7 Wheat seed stitch
cut lace free and remove basting threads. Then either sew in a piece of fabric in the center section or use as a round collar for a pull over sweater for teen to small adult or yoke on a child's dress.
Another option is to fill the center section with double net stitch and make it solid centered.