I am a huge fan of Frank Herbert's, my love for the first Dune novel knows no bounds, but I have never looked for a specific national "feel" within the book. To me it feels as if Herbert created his own unique interstellar society. The writing style it's self does not strike me as having originated from a specific area, and the society that he created is an interesting blend of existing cultures and traditions... albeit warped from our current perceptions by some twenty odd thousand years of history.
It would be interesting to know what someone means by the story "feeling British". Could you maybe expand on this statement?