Patrice,
Zipped below is the model smoothed in AkkuTrans at some 130o crease angle. It helped me to get rid of most ugly creases in and around Nefertiti's eyes, nose and broken ears, and between her lips. Smoothing has been done only on the bust and top meshes, so the other scenery wasn't affected.
Yet frankly, I am reluctant to experiment on Nefertiti's geo any further (e.g. restore the missing and untextured tris) because I don't like scanned models as a genre. They are almost always too crude, amateurish and full of careless artifacts which are usually oh so many.
Also, you may call me color blind but some slight changes to the .MTL file's lighting and bust material coupled with the specular map included in the zip have made the Nefertiti model look on my monitors almost exactly like she looks in the renders that form up the diffuse "map", if only a tad less bright.
IMO this specular map (especially when the model is loaded with un-mipmapped textures) also enhances substantially the look of the model's micro bumpiness including the micro texture of Nefertiti's skin that the sculptor was able to reproduce so craftily almost 3,500 years ago!
Note well that the diffuse "map" has been definitely made up of two different yet unprocessed sets of photo renders with two different sets of colored lights, which explains the ugly jaggies on the border seams between various portions of the head.