In this particular quartering front view position and posture, this Elephant would be a much better candidate for a brain shot. The brain level (green line) is an imaginary line representing the location of the brain however the height of the bullet placement when targeting the brain changes depending on the distance between the hunter and the Elephant as you can see from the example in the picture below. In this case I chose to hit just beneath the brain level (green line) in order to compensate for the distance and the angle of the shot.
The quartering heart front view shot placement on an Elephant can be a good shot to take, however in this instance his left tusk is much in the way as well as his left leg which is fully extended forward.
Top shot. The impact is clearly visible so good camera work as well.