Not of the style. You have to be fully dressed for Gracie to judge you, but you only need two of the style she's looking for to pass the test. Assuming you don't wear a style that clashes with it.
Also if you do half and half, like half the style she's after and half of another style that doesn't clash, she really likes it saying that you've got a lot of style rather than being bland with one style. Of course it doesn't matter anyway, just as long as you pass the test