This painting from Dinotopia: Journey to Chandara uses a simple device. The subject is placed in a high-key silhouette near the sun. The silhouette colors shift to warm hues as they approach the sun.
The color corona around the sun spills over and influences both the colors of the sky and the silhouette colors. The color mixtures are actually fairly low-chroma (not very saturated), but you can get a feeling of great brilliancy this way. This is very easy to do in digital, but it takes a bit of deliberate planning in paint.
A silhouette treatment is good to use in a sequential work like an illustrated book, comic book, or animated film, especially if you want to give the viewer a break from looking at a lot of detail.
Good rule of thumb: the most brilliant impressions of light are achieved in paintings when looking toward, not away from the light source.
Previously: Color Corona
Color and Light, page 166-167.
Dinotopia: Journey to Chandara