Underwater Gateway in Soft Watercolor

An underwater watercolor scene featuring an ancient stone gateway standing on the seabed. Sunlight filters through clear turquoise water, casting dappled patterns on the weathered arch and carved reliefs. Surrounding coral reefs and swaying sea grasses frame the gateway, with schools of tiny fish drifting through the opening. The painting is rendered with loose watercolor washes, soft edges, and bleeds of blue and green to create a dreamy, ethereal mood.