Tiger Lily by Jodi Lynn Anderson
I LOVE the colors on this cover! I didn't realize it the first time I saw this cover, but that's a picture of a girl in a dress! I thought it was just a flower at first glace, which is gorgeous, but now that I can tell it's a girl, it's like ten times more awesome. SO PRETTY!
I love the font for the title as well, and I love how the author's name is big enough and bright enough to stand out and be noticed, but it doesn't take over the cover.