Making my first chara sprite - looking for tips

[camanho.pt]

Hi everyone! I'm new here and new to pixel art too. I have this study group for a future indie game developing group, and I'm working on the 2D art. So, after reading a lot of good materials and some tutorials about pixel art on the internet, I've made my first original character that I'm planning to use in some platform game tutorials. I spent a lot of time to reach this point and it is really the best I could do. I would like some tips, specially about the palette and the shadow/lightining. What improvements will work better? I think I'm satisfied about this right now to begin with, but I really fell that I need some tips of experienced pixel artists in order to go on to the sprite animation.
tks!

[Decroded]

hat not sitting on head very well, redraw it using reference.
sacrifice morechair and maintain some fringe to give character.
closest iris seems 2 pixel too tall, try putting white there instead.
arms too bulgy and too short. give her a wand?
belt hangs too low, shorten waist for more interesting proportions.
change magenta vertical line to arc out a bit more at the top to match the pose.
feet too round and puffy, reduce their overall size.
obvious staircase banding on rear arm.
hair colour too close to her clothes?

[wolfenoctis]

Your also using too many colors that are too similar in brightness, which contribute in making the sprite look flat. Decide where the light is coming from and then shade the sprite accordingly. And edit to illustrate:

[camanho.pt]

Love your edit wolfenoctis!! Thanks for the tips you two, I'm working on it. This is a exercice to me to practice both pixel art and the game making software Construct 2, and I'm planning to add the wand on a kind of second stage. Also I'm tring a "childish" look
Thanks again!
(p.s. sorry if the english wiriting is not right)