Kotomi Ichinose Colored

Hms, the shadow the hair leaves on the forehead is quite noticeable, but the rest of the shading is very pale, it's hard to tell it's there. Be aggressive, there's usually a lot of difference between bright and dark areas. There are also some folds in the clothing that don't quite have the needed shadows; the original has a few of them done.
You could also cast some additional shadow beneath the violin, since it's blocking some of the light coming from above, on part of the clothing. You could also cast a few highlights on the violin itself, the material it's made of usually reflects some light and the S-shaped marks are actually holes, so I think it would be a good idea to use a different (preferably darker, more on the brown side) colour, to avoid confusion with the rest of the dark gray items on it.