I have 20 different butterfly blocks. This is not a final arrangement. Just grabbed a few blocks to lay out on the background fabric. There also will be a pieced border that goes around all the blocks. But can't move on to it until I decide on the background fabric. :D
So far the vote is a tie.
50% for the greener fabric
50% for the lighter fabric
Thanks for all the suggestions, I may just have to walk away and take another look in a day or two before I decide. :D