Surprised no one has mentioned Jan Longmire, she has made some of Sasha's dresses and one for Yu Na and does Andrew Gonzales' costumes.
Some of her dresses for Sasha:
Her dress for Yu Na:
http://gallery.ice-skate.net/photos/...drew-gonzales/ (i love this so much!)
She also recently designed her daughter's wedding dress.
And another fun fact: Keegan Messing's mom draws up the ideas for his costumes and they are then sent off to their designer (forget who, it's a company). They then send her some designs back and she sends back what her and Keegan like and voila!
I am the one against the belt LOL and someone I follow hates the back, but I LOVE the back.
I love Jan Longmire's work!! Sasha's dresses were always GORGEOUS!