Finally I've finished it, and i'm very happy of the result, because this is my first classic blanket with granny squares. I've tried to finish it lot of times, and sometimes I've thought that I was not able to finish it. I don't think to do another blanket like this, cause there were too much sewing thread to fix.
I've done it with industrial filament that I had at home, very thin, so I had a lot of patience to do the clews, and to combine the colors.
Naturally, my daughter says that it is her blanket.