flash would have helped a bit with this shot though - sadly the strong lighting is a major problem (esp when at zoos where many don't even open till 10am). The counter is to use flash to boost the light levels on most of the subject thus letting you expose more for the stronger highlights. I tend to find in such lighting I am often underexposing the shot (in aperture priority mode) by up to one stop and letting flash balance out the rest.
OF course one has to keep an eye on the subject as flash can sometimes be a major pain for the animals to put up with (and some even have no flash rules on the pen).
Other than that a sharp shot, good feeling snarling feeling from the cat and good pose. You might want to back of a little (if this was RAW) with the blacks slider as some of her darks are little a little too coal coloured rather than tiger black. Also play with the saturation controls and maybe desaturate the cyans only to lose that blue hue to the shadows