I do not want to lose so much detail when making the retopology. It is not perfectly made, but more or less follow the patterns of the face. I have tried to recover a little detail by adding enough loops and applying a shrinkwrap modifier. I have applied a multiresolution modifier, but it is very softened. Any advice? :( Also, do you think that making a normal map of the original model, and applying the baked texture to the retopology can be a good idea?