Hello everyone! I finished my Ladybug cosplay a few weeks ago, so I figured I'd share my process!
I started watching Miraculous in November 2015, around the time it premiered in the US. After watching an episode or two as they released on Nickelodeon, I bit the bullet and watched the rest of them in French! I couldn't wait any longer, I was too attached to the show and especially the characters. Though I love both Ladybug and Chat Noir and plan to cosplay them both at some point, I decided to start with Ladybug since I identify with her more than I do with Chat, and my physical features are very close to that of Marinette's.
I decided to start on the wig. I purchased an Umi Sonoda wig from Lucaille, originally with the intention of using it for the character it was made for, but when it arrived I decided it was much too greyish for Umi and would work much better color wise for Ladybug.
I had purchased some cardboard paper mâché eggs from A.C. Moore around Easter time, as I thought they would make the perfect base for Marinette's little poofy pig-tails. I painted these the same color as the wig
I divided the wig in half, sectioning it off into two separate pigtails before cutting off the majority of the length to make the whole process much easier. (I, of course, saved the fibers that had been cut off, as I would need these to later make the pigtails). Using Arda Wigs' pigtail sectioning tutorial (found here on YouTube), I evenly split the pigtails and covered all wefts that may be showing as a result of the fibers being pulled aside.
Using the hair I had chopped off from the original length of the wig, I made little wefts by taking small chunks and hot-gluing the ends. This made the wefts easier to deal with and easier to attach to the eggs.