Nice quilt!! You did an awesome job of using scraps. If this was my quilt I would put 2 borders on. First one the size of the small strips, maybe in a light blue. The second border would be the width of the blocks in a darker blue. Thos blues just speak to me personaly & I find them calming and lovely. I rarely use white for borders unless it is the main color but if white speaks to you it would look great as well.