The virtue of Art is that it can contradict (any law of) Science, to be Art it need not be true to Science. It teaches that composition, balance, or proportion, can be obtained by any principle or exaggeration, so points at freedom in a deliberation that already exists.

Were you to say a certain principle is bad as Art (or as composition, color, etc) it would simply be the chance for originality, and you could make a wonderful Art by utilizing only the prohibited or bad principle.

The one law of Art is its own spontaneity. Its pleasure and freedom. How mystic, pure and simple its wish; it has no idea of potential Divinity! Decoration is its creed and vital allegory is its belief. Being the "Free Morality", it has no sin - then most assuredly Art is "all" we dare to express without excuse. So what is not Art is Science or a moral Photography. (...)

(...) Art is that beauty that may be born of anything, but not by a formula of balance or proportion beauty itself. Ugliness is that which the formula does not allow: hence there is never beauty without this ugliness which becomes transmuted by its superabundance.

Art is the instinctive application (to observation or sensations) of the knowledge latent in the subconsciousness.

Bad Art arises when a law code or mannerism (always something learnt) does not allow (by forgetting the necessary negligence) spontaneity. Art only is the Eternal Wisdom; what is not Art soon perishes. Art is the sub-conscious love of all things. Learning will cease and reality become known when it comes to pass that every man is an Artist.