I can't imagine how you have done these so quickly. Did you have them all prepped before you started sewing. They are machine appliquéd right? Did you use fusible something first? Hand embroidery? I would think you might want 4 more, given the dimensions and proportions of the bed. Are you going to use sashing? If you do four more, you might include some more colorized backings and scatter them among the others. Otherwise, I wouldn't change it. They are so wonderful!