Danny Hahlbohm is a renouned Christian artist (he painted the Footprints in the Sand that you may have seen before. I wasn't aware that he has quite an extensive array of Christian and Naval/maritime art. His "Above the Sea" gallery has ships and various ocean scenes. Below the Sea has mostly whales and other sea creatures. Check out his many works and some commentary at his Inspired Art web site.

Inspired Art - Spreading the Word of Life... through Art.