This beautiful underwater scene in the adult coloring book offers a relaxing and calming escape. The graceful sea princess in the center of the page is surrounded by swirling sea plants and colorful underwater creatures. She looks quite peaceful, as if she's deep in thought. Soft blues and greens bring the ocean to life and showcase these beautiful sea creatures in an array of colors. To add a touch of texture, try using different shades of the same color, such as light and dark blues for the ocean’s surface. Bright yellows and oranges paint an eye-catching fish, or create shadows and reflections in the water. For a subtle and calming effect, use pastels or bright colors sparingly. Although the colors are up to you, it should be a colorful yet subtle, relaxing and peaceful experience.