I come from a non-native English speaking country and, from my own analysis, I will say I have an intermediate level English fluency (IELTS score 7). Some of the articles on my blog were chosen by an international magazine (free of course). But now I am writing a novel.
The way we normally speak English is, of course, different from how it's spoken in native English countries. So the writing style for narration also is different. I have read a few novels from local authors and their (and my) style is really much different from the authors whose genre I aspire to write. For example, Elizabeth Gilbert, J.K Rowling, Dan Brown, Robert Ludlum.
I have read the books on writing style suggested by Stephen King, and other good books suggested online. My writing fits the description of the usual things but, still, the style based on spoken narrative is way different.
It's very difficult to invent my own style which can match their styles, but I am trying to imitate their writing styles. The stories are different; I just mean the style.
I think it's easier and will be acceptable to a large audience.
So my question is, what are the advantages and disadvantages of copying the styles of established authors?