Cute frocodile . Good that you tried to recreate the frog's texture for the mouth, but so far it's still a bit flat. Mostly under the eye and the parts where the mouth is supposed to be round. By adding some light here and there (compare your image to the original frog photo), you can give it more 3D shape. Also, think if the joint where the lower jaw touches the body is well attached. Right now the jaw overlaps the body, but it might look better if the body is in front of the jaw (or at the same level). It would be nice if you can also interact the "bag" (between the eye and front leg) more with the mouth. Just details but the result might increase in realism . Good luck!

nice blend

thats the next evolution we have to worry about lol