This is a basic Ice Princess pattern. I used Caron Simply Soft. The white yarn yields a less heavy hair and allows for better braiding.
There is a tab with photos to help make the doll.
This pattern requires patience but fun to make.
You can create your own crochet lace stitches for the skirt of the dress or add a cool edge. Your choice.
Update: pattern also added to http://www.pjcraftsinaustin.com with an embedded photo tutorial.