Unconventional composition. You have done well to eliminate the dog collar.

Slightly more space at the bottom would have been good as the chin would have been appeared fully. However, the collar and the antenna may have become visible.

The image is sharp even though you were handholding at 1/125th of second and the tigress was close. Eye contact is nice.

There is an empty space at the bottom left corner. I couldn't notice it in the first instance, so won't say that it distracts. However, without that space the image would have been better. At the present focal length it would not be possible without making the tiger centred. So zooming in a bit more would have been better.

A vertical of the head at 400mm would have been nice as well, but again the antenna hanging below might have become visible.

Having said all this, I know how chaotic the scene is with multiple jeeps racing with each other to reach close to the tigress. Getting a sharp shot without a jeep in such circumstance is great. :-)

Cheers,
Sabyasachi