Is this something that can be fixed with braces? (photos)

Hello, I had braces for about 2 years, got them taken off in Decemeber. Til this day I have continue to wear my retainer every night and once in a while throughout the whole day. My friend took this picture of me from the side. I zoomed into my teeths and I just don't like the look of it. Is this something that can be fixed by getting braces again or is this normal?

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