Coffee Foam 'HI' in Vertical Café Frame

A single cup sits centered in a vertical 9:16 frame with the letters "HI" drawn clearly in the milk foam, conveying a quiet friendly moment for a mobile audience. The scene bathes in warm café tones of deep brown, creamy beige, and soft caramel that echo #6B4226, #D9B382, and #C86B3A for a cozy mood. Light sculpts the foam with gentle highlights and soft shadow edges for subtle separation and a warm glow. Surfaces remain clean and unlettered beyond the foam, with micro-markings reduced to abstract streaks on the cup rim. A moderate shallow depth keeps the foam and rim perfectly crisp while the background fades into soft shapes. Framing is tight and vertical, crop the cup so the top lip sits near the upper third and the handle peeks at the lower right for dynamic balance. Textures emphasize velvety foam, glazed ceramic, and a wooden table grain for tactile contrast. Include a small spoon or napkin at the lower edge as a contextual cue for service. Render as a natural photographic image with gentle warmth and intimate scale for story-driven display.