As a side note, I'd like to point to Krysztof Kieslowski's Dekalog series of movies, which illustrate each one of the Ten Commandments. It's not a film about faith, it's more films of faith. Not in the sense that it subscribes clearly to a dogma, but rather that it engages with the questions that the Christian faith deals with. You might want to look at it for inspiration (!); for me it's one of the greatest examples of art responding in an earnest way with human spirituality.