Looks like you could easily increase the size if you wanted it larger for a scarf or something. you just keep your circle making math in mind for the stitch count. then increase the center and the scallop
Patched Persuasion Pillows Free Crochet Pattern in REd Heart Super Saver yarn -- These colorful pillow patterns look amazing although they are easy pattern stitches that beginner crocheters can do. We’ve included patch pillow and stripe pillow options.