This one feels a bit cartoony (kinda like a clay shader), maybe that is what you are going for. Personally I like the photo real approach more. If that is what you want to get I would suggest to get more of a finer (high frequency) noise in to the shader and I would also work a bit more on the lighting in this scene. At the moment it feels a bit flat in the lighting, would be nice to have a more prominent lighting direction with some harder contrast going on, once again this is just my personal feelings so don't take it too much into account if it's way different what you are looking for. Wish you all the best going forward