What does a successful piece of art work have?

Deciding whether a work of art is "successful" is quite subjective. However, here are some questions to consider that can help one determine whether the piece of art is good/successful:

1. Is it original and unlike other works of art that you have seen?

2. Is it representative of the time in which it was made?

3. Is it "fresh"?

4. Does it have meaning?

5. Does it master the medium in which it has been made?