actually, if you say kelly copied ayu, then i would say ayu copied the hong kong singer Amanda Lee.
Amanda released an EP called 'The Revenge of the Princess' back in 1996, and in the booklet, there is a pic of Amanda in a dress full of flowers.
here's a pic, you have to copy the link into your browser, clicking it doesnt work
http://www.angelfire.com/ri2/extepan/images/amanda.jpg