...do people actually narrate as excessively as Nat? Well, players. DMs get to, but players should be more succinct about it. My 2 cents.

I did this once or twice in game. I got killed quickly

The trick to being witty and loquacious in a game of D&D is to keep the long descriptions for situations where they're useful.

Like, say, when you're the Rogue, searching for traps, and want a thorough description of a room.

Otherwise, keep it to banter at most.