And, can the artist faithfully do so?
When I create an image of Christ, I look at a resurrected being - not the one who lived and served on the earth; but the one who is perfected and working on our behalf now. Not always happy with us - then again, I'm not always happy with myself.
Then there is the conflict of what the image is used for. Most christian churches prefer to publish paintings that appear "realistic". Most of the faithful can appreciate that - a man that they "recognize" as the Savior. Why do they recognize the image - because it has been shown in basically the same fashion for centuries.
Many artists today follow the pattern - it sales. Nothing more.
The true artist, as I have noted elsewhere on this site, portray the Christ image that they see within themselves. Often it is more abstract or an image that alludes to the the savior. What is so interesting is that the faithful still recognize the image, or at least understand what it is telling them.
Thousands have actually see Jesus - during his ministry and after his Resurrection; as well as all of the prophets since Adam. Tellingly - there is no written description. It's too sacred. Why then, if the Lord's prophets haven't saw fit to describe him, do we, as artist, continue to do so?