Hatsune Miku

Oh man, there are so many things wrong with her anatomy...
I have one grey. Sorry about the weird shirt coloring. She's too tan. And she's got a serious case of accidental mad-eye going on. Her boob comes out of the wrong place. Her shoulders are off. Lay off on the criticism, guys, it's just coloring practice. I did the sketch in like 5 minutes.

Second attempt at using copic markers ever, still figuring out what colors come out as what colors. Hence why her hair is too blue. I realized a little late, so I colored her clothes more correctly (imo) to compensate.

I'm starting to use more different colors for skin, because one color is crappy and dead looking.

Again, any tips on how to use these amazing markers is welcome.