I made the hi-res model many months ago, but only now got around to texturing it and, during a slow day at work, modelling the low-res mesh.
The spec map definitely needs work, and his tummy is in dire need of more colorvariation. But other than that, I'm pretty happy with it. My main worry is how the normal map will play out in a real time underwater scene.
BTW, that texture is way oversaturated. In real life, whale sharks are a lot more drab and gray, or depending on the water, even black.