The art gallery features works by contemporary artists from Japan, China, and France, offering patrons the chance to see a kind of passionate innovative art.

Correct sentence: The art gallery features works by contemporary artists from Japan, China, and France, offering patrons the chance to see a kind of passionate, innovative art.

When the order of the adjectives does not matter, a comma should be used to separate them.

A parrot does not make an ideal pet for most people it requires much more attention and affection than many other animals do.

Correct sentence: A parrot does not make an ideal pet for most people: it requires much more attention and affection than many other animals do.

A colon is used to introduce an explanation or elaboration of the idea before it.It is used here because the first part is a complete sentence introducing an idea, and the second part explains or elaborates on why a parrot isn’t an ideal pet.

David woke up from the coma and asked, Why am I still in the hospital.

Correct sentence: David woke up from the coma and asked, Why am I still in the hospital?

Direct speech does exactly what its name implies: it asks questions directly.