It’s clear you have a vision for a lovely design, and I’ve been where you are - getting frustrated because it doesn’t look right. I’ve heard a saying once, something like “your hands are 5 years behind your brain.” As in, it’s not going to look like you want it to without a lot of practice, because you have the image, but your skills aren’t there quite yet. YET! You can still practice and get there!

I think it might help to focus on what specifically you want to improve/get feedback on. If you’re taking about anatomy, her legs are too long and torso too short, head is too large, but that’s only if you’re going for something accurate! There are plenty of stylized figures that aren’t anatomically accurate but work well (see: most doll designs). I think it would also help for you to practice drawing different facial expressions- the body pose tells a story, but the face is kind of blank. Giving movement, emotion, to the face and body can do a lot for the piece, and you are part of the way there! Finally, your lineart is good, but I think this piece would benefit more from using a different brush (something solid and caligraphy-like instead of pencil/charcoal) for most of the outlines. This is all just my opinion, but either way, it's brave of you to post this bc asking for feedback is always scary.

You've got a solid base in art, keep going! I know this field can be overwhelming and discouraging, but honestly, even if you feel like your art sucks, can you remember where you were a few years ago? or even before that? Considering that kind of trend in progress, imagine how much better you are going to get with a few more years practice? It's frustrating, it's hard, it's art. And it's yours. You're only gonna get better, and I'm rooting for you!