An old picture but I felt this was decent enough.
Girl Breast inflation Style's a bit basic, but the conceptualization is good. But it's an old picture, so no spilt milk, right?
Amen.
I think you should redo it to fit your new abilities. I think it'd make for a great drawing. And if you really want a good guage of your progress as you learn...keep reproducing it every once in a while. You may be surprised at how much you improve in very little time. ;)