I never think to take pictures while I'm working on things like costumes. So I have nothing about the process I went through to make it. I'm mostly happy with the outcome.
I used a basic costume pattern, but constructed it by piecing the different colors together. I didn't think about how I was going to do the shoe covers until after I cut things out, so they came out a bit wonky. I should have widened the bottom part of the legs to fit the shoe covers--I used the bottom part of a boot pattern from another costume, and didn't want to make separate boots because they never stay on. And the wig/makeup plans didn't work, so she just wore a baseball cap she decorated and added a visor (made from a plastic two-liter bottle). Here's the only picture I have of the finished costume, because she went to a friend's house to trick-or-treat and I never really got to see her in it.