The top three images were used to form the composite above. Exposures were 1/180 at f4 200 asa at the 200mm focal length.
First the bars had to be cleaned away from the important areas using the clone tool in Photoshop. This took an hour or so. The background tiger was moved to the right and the top of the background of the lion shot was used to fill in at the top and left. This layer was then defused using 'gaussian blur' and blended in to the background of the smaller tiger image