Hi there. ^^ Welcome to the board, Diinee. This is really cute, and the coloring is off to a good start. Your lineart could really use some attention - I understand you're working with a mouse, but half an hour's work on cleaning up the sketchyness will add definition and solidity to the drawing. I love love love the eyes! They're extremely bright and uh, er, eyecatching? You're right on the proportions, even for this style - she's very strangely put together. Try adding more space and roundness to the area around her ribcage in her torso. Her hand is good, but the way her left arm is bent is pretty much impossible. Try looking at a friend do the pose you had in mind for this girl, and then see how the arm falls in relation to the rest of the body. The colouring on the hair is great in terms of value and contrast - but it could use to be a little smoother, especially with the harshness of the dark lines in the hair. Also, watch where her collarbones lie in relation to the rest of the body - you'll find if you look at yourself in a mirror (if you're a girl) - that your collarbones are going to be more straight across, rather than angled. You have them drawn as if you would draw a man's. Another further addition - shadows on white are blue, not grey, unless you're aiming to make that white part silver, and even then - still add in a little blue.

You're off to a good start! Keep drawing and experimenting and welcome to 2draw! <3