I love the piece! Since you are looking for feedback I can give you some. Okay Iove the colors but the shading could be improved. Make sure you have a light source from somewhere to help. Right now it looks like it's coming from the back, the front and the top. It's not very consistent so keep in mind that each part of the body is a 3d shape. Choose a light source and imagine the 3d shape or whatever and where the shadows and light hit. I would also recommend looking up a technique called hue shifting. That's what pixel artists call it. I would really help with making shading more vibrant if that's the look you are going for. Line art and anatomy is really good! I see that the hair has no shading and is just flat. You already separated some of the pieces into locks great! All you need to do is add some details/shading. Once again I would look up the hue shifting technique and I'll give you a link to those along with hair tips. I don't know what the big blue sword looking thing is lol. But if it's a sword I would recommend trying to do some sort of a gradient. I'm not the best with metal surfaces. But definitely add some highlights.

Hue shifting tutorials
https://youtu.be/6hmWUfH_wOo?si=DErJN9q96VPOersz
https://youtube.com/shorts/-hYVbp9R3Gg?si=Z-lPmwZlvUKJkRpF

Bluebiscuits hair tutorials
Yt short - https://youtube.com/shorts/wOgEsBIWc5U?si=1CdOZheeJHaYRNEP
Hair tutorial pt 1 - https://youtu.be/TVurmm9xCHA?si=l7ckfqF3qOFmfyzJ
Hair tutoria(coloring)l pt 2 - https://youtu.e/n2R_63l7vXw?si=xuEaZc33h2qf6KfW

dang i wish i couldve participated in this

Miku!!!!!

SOOOO GOOOODDD <3

Cutie pie!! :33333

So cool

woooahhhhh

i love it

blub blub

reminds me of noodle from gorrilaz /pos ^_^