Scripture doesn't address this directly. The closest relevant verses I can think of are:
Psalm 101:3 (KJV) I will set no wicked thing before mine eyes: I hate
the work of them that turn aside; it shall not cleave to me.
This would be an example of a (good) decision to not regard (or even look at) certain things. Things that would be depictions of sinful behavior.
This could be as obvious as watching pornography, or stretched as far as a personal conviction would take it. I may think that WWE Wrestling (does that even exist any more?) is sinful because of the violent behavior, or Betty Boop because she shows so much cartoon skin. that doesn't mean that you would necessarily agree with me. (And I don't. Those are just silly examples to illustrate the point.)
Matthew 5:28 (KJV) But I say unto you, That whosoever looketh on a
woman to lust after her hath committed adultery with her already in
This would seem to me to apply in the case of pornography. The point of that type of material is to incite lust. But where is the line on what is art and what is not? This doesn't address your question, either. What I find artistic, you may find lascivious, or vice-versa.
In the end, that comes down to a personal conviction. Unfortunately, there isn't a clear line. Society, cultural norms, our own background, and our own mental (and possibly genetic) makeup all determine what we find to be beautiful in an artistic sense, and what we find exciting, and arousing in a non-artistic sense.
The same can be said for other forms of art. Music, for example. Does Heavy Metal incite aggression, or does it give that extra bit of energy when working out? Theatre, literature, every form of art is different experientially for the consumer, and we may not get from it what the artist intended.
In the end, perhaps the most relevant verse is:
Romans 14:14 (KJV) I know, and am persuaded by the Lord Jesus, that
there is nothing unclean of itself: but to him that esteemeth any
thing to be unclean, to him it is unclean.
Whether or not something is artistic or sinful is in the eye of the beholder (believer).
I hate that answer, by the way, because it opens the door to anything being acceptable. I don't think that's what's meant. I believe that we do need to rely on Scriptural guidance, the leading of the holy Spirit, and our conscience (assuming we haven't seared our conscience).