Perikli my friend you really did a great work with this scratch. My only negative comment regards the flesh tones. I believe that you work with oils? If that's the case you need to take care the transitions from shadows to lights and vice versa. For example on the arms the smooth transition from highlights to shadows is missing. You need to blend better those area so you have a smoother result. Also on the legs... where the skirt should shadow the thights you have a very pale skin tone.
Hope that those comment will help you bring better results in the future.
Xenofon