I think the big part of my previous failure was from making the scallop too big. Meaning, the length of the circle was too big, and my scallop looked more like what clown would wear at circus.
The other mistake is the lack of ironing. This time, I ironed the hem from the right side of the fabric, after stitching the scallops, but before turning the hem inside out. I think this helped a lot for making smoother scallops.
I used this tutorial at Vain and Vapid blog for the scalloped hem.
My inspiration comes from here..
