Designed with two mirrored mythical sea maidens framing the center, this card shows them facing each other with a tender, friendly gaze that feels like a shared secret before a celebration 🎉. Their human-like upper bodies have soft features, noticeable lips, and bright eyes, while long wavy hair in deep blue-green flows down around their shoulders. Below, each figure shifts into a scaled tail shaded in teal and turquoise, ending in wide fanned fins that curl outward. Ruffled, shell-like details along their tops add texture and a dressed-up look without crowding the scene. Between them sits a double-ring circle they appear to hold lightly with their hands, like they’re presenting a gift together 🎁. Inside the circle, the words “Happy Birthday” are centered, written in a casual flowing style in a dark ink color that stands out clearly. The background is a soft creamy tone that keeps the sea colors looking rich and luminous. The circular frame is outlined with two thin dark lines, and the tails show small repeated scale marks that catch the eye near the fins.