Create a hyper-realistic premium beverage advertising poster for a fictional sparkling citrus soda "ZEST". FORMAT: 4:5 vertical, vibrant commercial layout. SUBJECT: a frosted glass bottle centered, dramatic orange and lime slices bursting through a wall of sparkling water splash frozen mid-air, ice cubes and bubbles suspended. BACKGROUND: energetic gradient from bright tangerine to fresh green, soft radial glow. LIGHTING: crisp refreshing highlights, glistening condensation on the bottle. TYPOGRAPHY: bold playful logo "ZEST" top-center, tiny tagline "Taste the fizz" bottom. FINISH: 8k, ultra-detailed, refreshing high-energy commercial finish.