A different twist on perspective can make a some what ordinary image extraordinary. The flower in the place of her skirt gives a bit more of a fantasy feel to the image. If the photographer was even slightly off then it just wouldn't have the same impact.
i don't know why i like this so much but i do, i guess it's coz when i was younger, i used to draw people with flowers as their skirts and dresses and so i have like, an emotional connection to this picture! wow, that sounds lame!