You've done a good job here! Your shading and highlighting is good. I would just ease up a bit on your highlights just a bit. Remember that the brighter and sharper (and sometimes the larger) the highlight spot is, the "shinier" the object would be. It just looks like the scarf is made up of some kind of .. maybe a plastic or latex material? Nice work overall however. Just keep it up and continue practicing!
Also, the "simple" style you're using is good. I always love simple The size of her hands "could" be okay depending on your style. But yeah, it all depends on the character.