To give a little history on the pigtails.  I actually dislike the look of pigtails.  My mom will always put my daughters hair in pigtails when she has her because I won't.  My daughter loves them so this is my version of the pigtails.

I started by pulling her bangs  to the side ( her bangs are still growing out)  I gave them a side swoop 
Then make your center part.
Here is were I added a little flair.  I pulled a small amount of hair and secured it with an elastic (as shown below)  I made a pull thru twist in it. and then pulled the all the remaining hair into a ponytail.
The back view below
Then I curled her pigtails into ringlets.