Nice smile and great detail. The undulating row of teeth is somewhat hypnotic if you just stare at it a bit. I'd be tempted to remove the blade of grass at the tip of the snout.
Steve
In terms of the background and grass...I quite like them both. They help to place the gator in its habitat. Love this great view of the teeth, but do feel that things might be just a bit tight here...especially in terms of the back of the head. Nice work on a slow afternoon. :)