Sadly, superficiality is sort of my metier. Is it enough to say I know Savile Row when I see it? I do wish I had a better technical grasp of things so I could explain, for example, why the chest on that Nutter suit is the way it is and why it is all of a piece with standard Savile Row technique. There is a great old post by Manton somewhere around here going into some detail about various silhouettes. That would certainly be worth your time to seek out and read.