I think she looks perfect, especially for a growing large breed puppy!
I can feel Gonzo's ribs, and his spine. Neither are poking out, but you can easily feel them by running your hands over them. I think that is ideal for his breed, though, and he is super muscular. I totally agree with you, Grace.
I also have to say that Ronin looks awesome! To me, if a dog is that muscular and well-built, he obviously isn't underweight or undernourished, at all. When a dog is underweight, it greatly effects the muscles.