Originally Posted by Prism99

I would discourage you from using nylon or polyester monofilament thread, as in my opinion there are better choices these days. I would opt for Superior's Bottom Line or MicroQuilter in a color to match the background. If you opt for monofilament, be sure to search the QB for tips on using it as it does require (at a minimum) reducing the upper tension on your machine. I also think a walking foot would be helpful if you are doing straight line quilting, such as rays.

Originally Posted by OhCanada

I think you are on the right track with the organic fmq. Have you considered using a mono thread or one that would blend into the negative space, it would give your beautiful quilt texture without distraction of contrasting thread.