Home page - Make images for home page boxes - "The collection" - "Events / gallery showings" - "Latest Projects" - etc.
Other main pages - Make other very large images for other main sections?
Galleries - Research types of galleries and think about how to display images.
SmugMug - link to the "clients page" or embed that page within an iFrame?
Site design - try black background, need new template instance for testing, email support?