work of art

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A product of the fine arts, especially a painting or sculpture.
• noun Something likened to a fine artistic work, as by reason of beauty or craft.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A product of the fine arts; a painting, sculpture etc.
• noun Something of sufficient quality to be compared to such a product

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun art that is a product of one of the fine arts (especially a painting or sculpture of artistic merit)