Fashion is an art.
From the very begining every designer looks for inspiration, inspiration for a good idea, after all they embody their idea on paper.
After this, they give some effort to their work and make it even bigger, this is the part where the sketch becomes real, and they make of it "a piece of art"
But the sketch and the design are not the only Art part of fashion. The most important part is the style that you give to the garment, the piece of yourself that is on anything you wear, it's not about the cost of your clothes but about the way you gove them style.
This is art. The piece of you that is printed on every style you use.