Depending on the location, the panels could be backlit or indirectly lit at the perimeter with LED lights, lit from the front with wall wash fixtures, or even by art-light spots to highlight individual features in the graphics.
I hope the wheels in your mind are turning now. I believe this idea has tremendous potential for customizing home design. Think about suggesting this to your next client who has adventurous taste, or who likes the modern or contemporary look. If you sell a project like this, please send pictures of your completed masterpiece to me at DBawden@legaleaglecontractors.com.