For this image I used the pen tool to create a path out of the dog. I then copy and pasted the image into this document with the background. I adjusted the brightness contrast of the images and then changed the saturation a bit. After that I merged the layers and burned in a little by the dog.

Step one: I adjusted the color balance and saturation. I then burned in a little on below the boat. After that I added a little noise.

Step one: I used the pen tool to cut out the image of the train. I then pasted the path into the sunflower field. After that I Adjusted the color balance of the train. I then changed the saturation of the sunflower fields. Once I was more or less finished with the two images I merged all visible layers. I then added noise to the image. I also used the clone stamp tool to get rid of a random spot in the background.

http://www.alexcrawfordphotography.com

http://www.mistykeasler.com

http://www.pushmepullyoudesign.com

http://www.nationalgeographic.com