I apologize in advance if you did not want anyone to edit your image and repost since you didn't have your notification on that said otherwise, but here is a 5 minute workflow that I go through on most of my images in clean up. If you would like me to remove the image, just give me a PM.
This image is tougher than most because the majority of the image has fence in the BG.
Remember this was only 5 minutes, if it was my image I would spend upwards of 30 minutes to fix it.
1. Before any removal I always check for exposure so that I am cloning the correct highlights and shadows. I first used curves to tone down the highlights in the tiger's face which were almost blown out. (the OP was also a little over sharpened)
2. The second thing I do is check for small details that need to be removed, this will give me an unbroken base pallet of tones to use for cloning on the larger objects. In this case, the dark tones in the upper left were ideal so I began with using the spot healing brush tool to get the small fencing, then touching up the patterns I created with the healing brush tool.
3. Because I had nice dark tones to work with in the upper left, I gradually began to clone to the right (using the upper left as a source point), starting above the tigers head and working up into the corner. When cloning, always try to keep your source points in horizontal bands across the image. This will give you natural looking light, not bright on one side and dark on the other.
4. The second to last step is blurring your heals. I used a 15% blur brush in horizontal strips in order to keep the DOF somewhat convincing. Brush over the top of the image more than the middle as you want to keep the DOF realistic. After the blurring, I dodged and burned to create shadows in the BG (pretty bad shadow effects because I only spent 5 minutes total on the image). Instead of using the dodge/burn tool, which is destructive, I use the non-destructive version. ALT+new layer>MODE: soft light> check the box "fill box with 50% gray"> then use the black and white brush tool to create your shadows and highlights; respectively. If you want to remove a burn that you did, just switch to white as your primary color and dodge over the burnt spot.
5. The final step was to re-evaluate the image. In this case I noticed that it was a pretty cool image for the tiger being in the sun, so I slightly warmed up the white balance. I did one final curves adjustment to get the shadows looking better.
Again, I hope you do not take offense to me posting this. It was a REALLY quick edit, so the cloning is quite rough. Especially in the upper right there are some larger patterns that need to be removed.
EDIT: The source point for the middle right was the middle left grasses and weeds, I used varying clone brush sizes and opacities to get an alright result. When you are cloning, it is really easy to get stuck using the same size brush with the same opacity for the entire time. The secret to being successful with it is changing the settings up.
Hope this helps,