This design shows a sunny seaside scene split by a sparkling waterline, with a calm world above and an inviting ocean view below. Above the surface, a young figure in a wide-brimmed blue hat and simple clothes leans over a weathered wooden pier, their posture suggesting a curious, caring focus on what’s beneath. A few seabirds glide through a soft yellow sky, and a small red-and-white striped lighthouse rises from a green island in the distance. Near the top, “Happy Birthday” appears in large dark lettering that stands out against the bright sky, giving the message clear center stage 🎉. Below the water, clear turquoise tones reveal sturdy pier posts and a gentle underwater scene where a sea turtle with warm brown-and-green markings swims unhurriedly past coral in rosy pink-red shades. Around it, patterned fish in black-and-white stripes and flashes of orange and yellow drift close together, like friendly companions sharing the same current 🎂. Sunlight dapples down through the surface, making the sandy bottom and scattered smooth pebbles shimmer in pale, watery highlights.