Hey there! Good job here! :) It would be helpful to draw a line to represent the spine so you can keep the proportions a little more accurate. Similarly, you could draw a horizontal guideline across the upper part of the shoulder blades to keep the shoulders better aligned. :) Once you have this foundation, you can start adding the clothing on top. This way, you can make sure the character looks better proportioned before moving on to the outfit. Hope this helps!

idk if all of it needs a fix at once, maybe center the neck under the head then match both shoulder heights so the back silhouette reads before adjusting the hips