In short, the start is good: a rereading of donkey skin more raw and real.
In reality, the work loses herself in the half part, what is the problem? Indecision.
The indecision about which direction the novel will take, whether to make the protagonist emancipated feminist ante litteram, or a classic romantic heroine, indecision about the choice between the fantasy genre or stay balanced on the fantastic.
The author would perhaps have a better idea, but overall it is readable, especially if you are interested in rewritings of fairy tales