You made a good work, but something is yet wrong.
The placemark of "Alta Langa DOC" is in a bad place, I think it has to be placed 40-45 kilometers South.
The Albugnano DOC has to be placed were you placed Alta Langa DOC,it's a very small move but Albugnano DOC has a very very small area.
You can see detailed information at http://www.lavinium.com/denom/piemden2.shtml


Regards