Rainbow above a Lighthouse

A bright rainbow arches over a white lighthouse on a rocky coast after a storm, with dark clouds and brilliant sea below.

The lighthouse gives the scene a firm vertical anchor beneath the curved rainbow. Wet rocks, sea foam and dark cloud pieces each have their own texture, even where the colors are close. Build the coast first, then follow the rainbow in sections from its bright ends towards the softer middle. With a larger piece count, keep rainbow above a lighthouse together as one reference group until the surrounding colors have settled.