Over and Under and Over and Under....

I've reached the final quilting stage on my second Celtic wall hanging.  This was such a fun project - I really like how it looks.  The applique took me two days to get it ready to stitch, then another two days of hand stitching, before it was ready to quilt.  The applique pattern is my interpretation of the Wheel Around the Sun applique pattern from the book "Celtic Quilts" by Beth Ann Williams.

I'm having difficulty deciding how to quilt the borders. I got the center block quilted. This is my first time to use transparent thread for quilting.  I tried several brands before settling on YLI.  That didn't really surprise me, though, since YLI thread is my "go to" thread for applique.  I'm working on adding to my thread stash with their silk threads. I tried quilting the border with free motion sort of following the print in the fabric, but that didn't work for me so I unquilted it.  Luckily I had only done one side before making that decision so it didn't take too long. 

As you can see, the fabric is pretty busy.  It's from the same line of fabric that makes up the center design, so it coordinates much better than it looks in this photo.  Anyway, I'm still thinking it through.  Any suggestions?

Happy quilting.