I love the butterfly fabric, but the block design doesn't seem to show it off enough. The gold fabric might work better for you if it's more of a frame around your butterfly block. I would use a larger block for the butterfly and frame it with a narrower strip of the gold. Using two bright colors in your alternating block takes a lot away from the butterfly. You want people's eye to be attracted to the beautiful colors in the butterfly when they look at the finished quilt.