The silhouette of the girl fading into the forest is a great use of Photoshop. The message of the picture may not be clear to everyone, but the design is very well done. The contrast between black and white is always a nice aspect to incorporate.
This photo is known as "The Bishop's Diagonal" and was taken by Eric Forey. I love the composition and how the sharp edges of the pavement markings contrast with the curve of the umbrella, which has its own black and white pattern.