I really like the way you did the background, the scrappy and the ombre look are great!. I would go with the small aqua border, as it will pull the peacock colors in very well. I think what is throwing my eye "off" is the proportions. the large pieces in the background patchwork make the peacock look relatively small. same with outer boom blocks, they are large-ish patchwork. I know that is not fixable, but that's the best I can define as why it may look off.