Copy of watercolor woman

Recently I saw an advertising magazine with wonderful illustration at the cover. Here is the mobi-photo of this magazine cs623319.vk.me/v623319779/2b7d… And I liked so much this watercolor woman! So I decided to draw copy of her. It was useful because I study how to draw with watercolors. My version looks not so good as the original but I still like it, especially eyes.