could not open the pictures but the site is
Marina di Campo (Isola d'Elba): Dash Intersky da ZRH trancia cavi elettricità - Pagina 3 - I forum di Aviazione Civile
halfway the page are the pics
hopefully the moderators will allow the adress as it clearly shows it was indeed very foggy.
Also important to note is that with a damaged prop but gear and fuselage intact the aircraft can only have hit the high voltage powerline in a very steep bank close to the ground.
the gpws must have sounded continiously or was it perhaps switched off as to avoid nuisance warnings
like close by hills and terrain?