I am not a native English speaker either, but my accent is clearly British with a slight Cockney

How did you get that Cockney accent then, Turnoi? I hope it wasn't listening to Dick Van Dyke in Mary Poppins over and over again, that would sound strange. It's agony listening to some Chinese ladies don't you think; so many of them get their accents watching American films, but they don't get it quite right? I did know a young man who lived in digs in London packed full of Irish, and ended up sounding like a navvy. Just curious on...cheers&beers.