Welcome to the board. You will find many wonderful and helpful people here. I think you top is very pretty. I don't recognize the fabric,but what you could do is take it to a fabric store and have the ladies there help you to match it to some yardage and sew a couple borders to the sides, depending on how big you want your top to be. You could just see 1 border.
I don't know what your sewing background is, but you did a great job. Hopefully I helped you a little. Gina