We tried loads of photographic approaches for this cover before arriving at this. I created this illustration as a last-minute entry to the Cover Meeting, and amazingly it ended up being the finished jacket. Here's the finished cover, plus a close-up of the illustration.
The Great Gatsby: "He knew that when he kissed this girl, and forever wed his unutterable visions to her perishable breath, his mind would never romp again like the mind of God. So he waited, listening for a moment longer to the tuning-fork that had been struck upon a star. Then he kissed her. At his lips' touch she blossomed for him like a flower and the incarnation was complete."