Want to adopt a 3D dinosaur? Have a look at the Spinosaurus.
Hand-sculpted dinosaur with quite complex shaders mixing procedural textures and hand-painted masks. I used a toy for base mesh reference.
For the eyes to render correctly you need reflective caustics.
Example animation with this model: https://www.reddit.com/r/blender/comments/18l5efw/i_tried_to_animate_this_using_chickens_as_a/