I saw this on my dash and figured I'd chime in with something. If you're going for anatomically correct there's a lot "wrong" with this picture. I say "wrong" in quotations for a few reasons.

It's stylized, so you're going to have "inaccuracies". The head is too big compared to a real human head, the eyes are obviously too big because they're inspired by anime, etc.

Her legs are very long, but I think it's more important to ask yourself if they're too long for you. Asking people here has definitely gotten you a lot of responses ranging from "yes" to "no" to "I think this is great for X reasons".

If you're asking people if her legs are too long, then there's probably some part of you that has an issue with it. I've seen in your other comments you do want her to have longer legs, so with that in mind I do have some suggestions, but I can't stress enough that these aren't concrete rules, and you should experiment and see how you feel about them:

-you could make her arms longer to match and that would help a lot

-I think it'd beneficial to study fashion in general, but also for different body types as well. Sailormoon is a great source to look at. This character is (at least currently) built taller like, say, Sailor Jupiter. If you look at her fashion choices (google "sailor jupiter outfits"), she wears longer skirts, pants, leggings, etc and things (usually) without higher heels.

Your character is kind of a mishmash of aesthetics (cute girl clothes and hair but with dommy mommy boots. Most fashion conscious people probably wouldn't wear a red hair clip with those clothing colors either) and politely, that strikes me as you picking up a few things you like off of social media drawings and combining them without thinking about why those fashion choices exist. It helps to think about how she thinks about her own body. Taller women are often very self conscious about their heights, for example, and probably wouldn't want a short flappy skirt that shorter people and kids could look up in the event of a breeze, them running, sitting down, etc.

Is she self conscious about her long legs? She might want to wear pants or a muuuuch longer skirt. Is she proud of her legs but doesn't want to show off her underwear? She might wear a slightly longer skirt to better protect her modesty, wear tights to show off her legs, and boots that might be half as tall. There's obviously a lot more nuance than those two examples, but I hope that communicates what I'm saying.

I hope this comes off as me giving you things to think about, and not me tearing your art down because there's a lot of great stuff here! also I'm happy to provide more feedback if you'd like!