Late to the dance here, but wanted to say you are right on target. Very, very few authors imho can do novels and short stories equally well, and RB is one of the -- if not THE very -- best at it.

You're a writer, so you know that novels and short stories require different approaches -- one is a slow build and the other has no room to waste & every word must point toward the end. Bradbury was an absolute master at both.