How can I fix my unflattering teeth? (Photos)

braces for 4 years and continue to wear a retainer as well as a permanent retainer for my front two teeth. teeth seem to slant up on my left side and everything seems off centered. They have always done this I just noticed it later on in life. anyways I have had the front 4 teeth bonded to make them at least TRY to seem a little more even. What should I do moving forward to fix this unflattering smile? all my teeth look ROUD rather than square and makes my face look more rounded. Please help

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