The person in charge of a gallery is typically known as an "Exhibitioner," because a gallery is where art is "exhibited."
a curator
The word curator is a noun. A curator is someone who curates.
A museum is looked after by a curator whose duties include caring for the institution's collections and sometimes acquisitions. The specific tasks of a curator will change depending on the mission of each particular institution that they are in charge of.
a gallery that is on the computer
The international (French) term "vernissage" does not seem to be used very much in English.
A person you call who paints pictures is Artist
A person in charge of a province is typically referred to as a governor.
The boss
The word curator is a noun. A curator is someone who curates.
TourGuide or ranger
conductor
the owner of the park
Apparently any numbers beginning with 08 reverse charge the person being called. Therefore they would call a person, with an advertisement, and then charge that person for the phone call. That is why the recipient of the call should avoid, and not answer the call.
Funeral Director
The ambassador is in charge of an embassy.
The shadow gallery.
Chief Information Officer
He would be the chieftain or chief.