My final sighting.
It's incredibly difficult to get a good photo of a tiger, even from the back of an elephant only a few metres away. A mahout can make an elephant keep still when people are mounting or dismounting, but is less strict when looking at a tiger, so the elephant might move when you are trying to take your photo. Other passengers will squirm and jolt you. Then the light might be poor if the tiger is half hidden in dense foliage, as in this case.
This time the elephant moved constantly, pawing the ground, possibly because the ground was boggy underfoot. Being unable to get a decent picture when so close to the tiger is really frustrating.