The feathers were interesting in that you do not sew over your previous feather line, but rather combine it with some sort of echo quilting.
My biggest problem is that I have trouble with the shapes of the feathers. Instead of a gently curving, elegant feather, I have a huge mass or something. Oh well. You have to practice to learn, right? I did buy a feather template, Infinite Feathers, so hopefully this will help me in the future.
I am always extremely impressed when I see feather quilting. This is definitely something I would like to improve!