Most advice given to writers is generic and basic. This is because most aspiring writers make the same basic mistakes. But then most aspiring writers never finish the story they're writing. And most of the ones that do finish, never get round to doing a rewrite. And if you happen to be one of the few who do manage to persevere and are serious about producing a book worth reading (and buying) then, by definition, you aren’t most people.
When you follow generic advice your writing most likely will become better than it was, but that doesn’t mean it’s as good as it could be. Once you reach a certain level you need specific advice. Specific to your writing. And there aren’t people qualified to give you that advice.
For example, flowery, repetitious description is annoying and distracting to read, but that’s when it’s done badly. It is very difficult to show someone how to do it better. It’s very easy to tell them not to do it at all. But that may be the kind of writing they love to write. How can you help them then?