A combined work is called mixed media.
All but the pastels. Pastels are considered "dry media," like graphite (pencils) and charcoal. Anything called "paint" is a liquid medium.
I think the word you are looking for is Fresco painting. However, traditonal fresco painting is done with oils, not watercolors...the watercolors can damage the plaster. Oils don't have the same properties that watercolors do and won't spread like watercolors in plaster.
combine is called combine because god made it that way
They were Patrons of the arts.
An event where artists display their work for public viewing is called an art exhibition.
Usually, a School.
Atoms that chemically combine form a molecule.
A manicure which is getting them taken care of & cleaned up but the nails themselves are called acrylics. You have to go back every two weeks or so to get infills though.
The were called benefactors.
When two companies combine to form a single company, it is called an amalgamation or merger.
When you combine a chihuahua and a chihuahua you will get a smaller version of the dog called puppy.
When lead and bromine combine, they form lead(II) bromide.