Gammy, I have seen this pattern several times but never knew the name of it. Thanks for enlightening me.
I think I would carry through on the butterfly theme and quilt a border design with butterflies and/or flowers down each column. Or, if I decided to go an easier route I would simply make some oval shapes down each column. Either way, I would maintain the column design of the pattern.
Hope this helps. Good luck with your quilting. If you could post a picture when you are done, I would love to see it.
Hope this helps.