Ok, because my update of the first post has vanished during the server crash, I'm not bounded to my plans of the way I want update my project.
I have decided to do it step by step, that means I will update the models how I see them while I playing. I'm currently at the Wall market, so every model which is there gets an update. This has two advantages: first is that I don't have to search for a savefile to check if the model I created looks good;
second is that NPC are more often seen as supporting characters. However at the current state of my project the most important supporting characters are done.
The next release will also contain bloodshots animation. I have correct the Y-coordinates to they default one, so the characters doesn't moving up and down between the animation.