I thought maybe it would be Jaws at first, but now I get it.... Cool model!

I like this kind of GI type lighting render, it makes it easy to see the details in the model.

- Michael

hmm looks more like ambient occlusion and maybe a uniform light, or it could be a YafRay render +sky light and indirect lighting.

Just a quick GI render and some noise added in Photoshop to hide the ugly render :-)