One of the many reasons I love this photo is because of the emotion caught in it. Its very happy and freeing. I love the way the sun is beaming and outlining half of her body.
In this photo I love how the girl isn't the main emphasis. My eyes don't immediately go to the girl when I look at the photo. I also can see the details in all the branches and I love how all the colors of the bridge and branches blend together so nicely.
I very much like the intensity in this photo. I also think the photographer made a great choice by leaving a bit of color in the cat's eyes that you can only really see if you pay close attention to detail.