Watercolor Mermaid in a Coastal Fortress Ruins

Watercolor illustration of a mermaid inside the moss-covered ruins of a coastal fortress. She sits on a cracked stone ledge above a tidal pool, her iridescent tail draped over the edge and fins fluttering in the sea breeze. Surrounding her are ivy-draped arches, weathered battlements, and sea spray splashing through open gateways. Soft washes of blue, teal, and coral create a dreamy, painterly atmosphere; light filters through broken walls, casting shimmering reflections on wet stone. Subtle hints of distant waves, mist, and gulls complete the magical, ancient seascape.