It's not that it's wrong, it's that my own brain makes it look wrong. That's because most anime bodies I've seen have the same generic porpotions i.e. long legs, big head, etc. So when I see an anime body with actual human proportions my head is not used to it, and that's what makes it look wrong(To me at least).
In a more comprehensible wording: I guess the imbalance to only exaggerate the head features meanwhile leaving everything else in actual human proportions makes it look as if it's wrong.
Don't get me wrong, I like your stuff and I understand that you weren't trying hard as you stated.
"I've been a bit lazy with my art lately, just doodling all the time hahahah'' You're not the only one. I need to get out of this habit of never finishing my pics... ಥ_ಥ Seriously though, awesome picture. I love the hair and color choices!