Vibrant Arched Birthday Card

This card shows a glowing rainbow arch stretching across the centre, with smooth bands of red, orange, yellow, green, and blue that softly light the space around it 🎉. Inside the arch, the words “HAPPY BIRTHDAY” sit prominently in white, slightly slanted lettering that feels like it’s leaning in for a friendly, celebratory shout 🎂. The background is a deep midnight blue that gently fades lighter towards the lower middle, like a calm sky opening up. Along the bottom, faint layered curves ripple outward, giving the scene a dreamy, floating landscape with a cosy, close-together mood. Tiny white specks scatter across the blue like distant stars, clustering most densely near the rainbow as if drawn to its glow. A bright light source appears to rise from beneath the arch, creating a soft halo that makes the message stand out clearly against the darker backdrop. The rainbow’s inner edge looks almost illuminated from within, and the surrounding star-specks sparkle most noticeably near the top curve of the arch.