Hi Rex,
Love the shot.
In my opinion, many of the most memorable pictures ever taken in the world were
nothing more than snapshots - pictures capturing a particular thing or event
at a particular instant of time. For example, compare the technical qualities
of this snapshot against the compelling subject and moment in time -
http://en.wikipedia.org/wiki/Image:TrangBang.jpg
Your shot of the tiger is fabulous because it captures the animal right at that
magic moment in a great setting. You've helped improve the composition
some more by cropping and have technically improved it by adjusting the levels.
However, I think you were 99% of the way there when you got this great shot!
Thanks for the post and keep 'em coming.
Best regards
Gary