Iced Coffee Protein Shake Splash Ad Prompt

Create a vertical 4:5 commercial photograph of a tall cylindrical glass, about four-fifths full, holding an iced coffee protein shake. Show a smooth gradient from deep espresso at the bottom to warm beige at the top, with soft swirls where cream is still mixing in. Freeze a liquid splash erupting above the rim, with ice cubes, coffee beans and cocoa particles suspended around the glass and a thin cream stream pouring in from above. Use a deep espresso-brown to warm-beige background with gentle bokeh, a wet reflective surface under the glass, and soft directional light for a premium café-commercial feel.