Create a premium skincare serum hero image featuring one unbranded transparent glass dropper bottle filled with pale aqua serum for ecommerce and beauty campaign use. Place the bottle upright in a shallow circular pool on frosted glass, surrounded by controlled water ripples, translucent acrylic arches and a soft cool-blue gradient background. Add tiny realistic condensation beads to the bottle. Use a square centered composition with asymmetrical water rings and generous clean negative space. Light the liquid with luminous backlight, narrow rim lights and soft frontal fill for a fresh clinical mood. Keep the glass refraction, dropper and cap physically plausible. No words, no label, no logo, no trademark, no duplicate bottles, no warped cap, no watermark.