I love the hair, it looks very nice <3 You could need some work on the body though. The head is too big and the arms too small. I think you drew her waist very well though, and the neck looks good! But as for the nose... don't draw two lines like that, just have a really short and round v at the bottom of the nose instead.
However, the eyes are pretty and you did a good job on her jawline, plus I have to give you credit for drawing her body so curvy, it really adds a strong womanly feel to it, in my opinion
As for the clothing... Well, the pants look decently drawn enough, and the clothing-design is cool, but the rest... um, don't put the folds in the middle and such, you make it look like someone drew on it with a marker or something D: Just have a few lines and bumps on the lineart/edge of it, if you understand what I mean.
Use your own body as a "help-guide" and reference when drawing. For example, if you compare your head to your hips, you'll clearly see that the hips are larger, so now you know to never draw the head larger than the hips. Get it?
All in all, I think this is a really nice drawing. The colouring is great, btw! And did I ever mention how much I love the hair? <3 Cus I really do! Just be careful not to draw things too small or big, and relax on the clothes a bit.