I'm very impressed by the textures of the models. You provided some excellent details and gave attention to even the smallest parts, which I find very ambitious and well done. The only minor suggestion I can offer is that is I would have loved to see such great textures supporting a clean quad-based topology. I know triangles work just fine for a model like this one (and is arguably more efficient), but that's just my own personal "pet peeve" when it comes to any model where the textures and materials are so clearly well done. I think once this model gets some views, it should become a top seller for you! The preview renders are great.