After-braces teeth aren't aligned, is that ok? (photos)

Hi! first of all, english is not my native language, so i'll try my best to make the questions the better i can. (please don't laugh at my draws) 1st draw pretty self explained, those four teeth, even when none of them are a bit upfronted than the others, they look... wrong, is like they don't grow up equally. 2-3 tooth a bit ahead than the other one, it ain't more than 2 mm, but if i see it from up, you can see the difference. 4th draw a bit backfronted, just 3 mm. all of this, are normal?

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