Marble Coast Blue

Native exact 16:9 horizontal ultra-realistic 8K landscape photograph. Core idea: Marble Coast Blue. Scene type: Limestone sea cliffs. Ivory cliffs and ultramarine water feel like refined natural architecture. Pure natural scenery only, no people, buildings, roads, vehicles, or artificial props. Use clean natural large color blocks, realistic professional magazine-cover photography, refined light and shadow, crisp tactile texture, tasteful premium color, and believable optics. Avoid AI geometry, CGI, illustration, fake perfect shapes, clutter, storm gloom, ugly gray-brown or dead yellow color, text, logo, watermark, blur, low resolution, and overprocessed HDR.