The final size of your quilt will depend on what you want to do with it. If you want a wallhanging, then any size will do. If you want/need a bed quilt, then you will need to add borders, or possibly another row of the design in a different color around the blue....a color that will compliment the quilt. Adding borders to achieve a larger size will sometimes look like that is exactly what you did, so you have to be careful.