Well, i was doing some tests with the Ichthyosaur (because i read in the older posts of OC that their AI was done from scratch and such), and i noticed that the model lacked of normal maps and rest of "new technology", so i made a couple of fixes to fix the "holes" and add to the model normal map and Phong:
As you can see it, it looks better than default.
Although finally i decided not use it, i added to the pack the occlusion and exponent textures, in case (i hope) other expert texture artists continue improving the textures of the model.
Link: http://www.mediafire.com/?sx5vk7r95eujgts