I like the texture you used on the hair. The multicolor highligts are cool and their simplified shapes do work.
The texture on the gloves is probably too realistic and breaks a little the style. You might want to use something more vectory/cartoonish/halftonish, like with the hair.
The eye looks a bit dead, you should add shine and more detail to it.
You could probably do without the mouth shadows, instead add some to the nose.
The background is maybe too simple. I don't think it's a problem here, but it could improve, probably, I don't know how, you would have to experiment.
You need to improve your line weights. For example, take some of the ends on the fur, where the lines meet, it's way too thick and the tip is round. Also the face lines are too thin and uniform (thickness wise).
That should give you some ideas on how to get better. Though you did a great job, congrats!