Thanks you all for your great feedback.
According to the guitar- here a link to the recording of another Barrios's Valse ( no.1 ) recorded with the same equipment ( mic and so on ) but with my own guitar.
So, the difrence is remarkable, I think.
Chris A, I studied guitar and I am also a guitarteacher now so that would mean I am profesionall. However, as a performer ... there are such a people like Russel, Desiderio, Assads and many many others... so, I am far, far away from calling myself professional as a player.
goodtone, you are right- there is more and more really profesionall stuff in this forum ( Materazzo is one of great examples ). It is really amazing.