Right now the two models, granger and adv granger look exactly the same, since the size of the advanced version was reduced to be the same as normal granger's. It seems a little weird though, evolving to an advanced form with nothing changing visually.
Could the advanced granger have some visual distinction, like longer tusks for example? Or is this made on purpose so the two cannot be distinguished? Having some distinction, like longer tusks for example would be neat in my opinion, it makes you have the feeling that it has evolved to a stronger form. It wouldn't have to be anything very clearly distinguishable, just something minor that makes the advanced form a bit fiercer looking.