Designed with a rich emerald-green background, this St. Patrick’s Day card features three stylized cats lined up side by side, giving each other the kind of easy, friendly closeness that feels like a sisterly inside joke 💚. On the left is a sleek dark green cat with wide yellow eyes, followed by a white cat dotted with lime-green spots, and then an orange tabby with soft stripes, all wearing matching small smiles. Scattered across the green field are tiny white shamrock shapes that float like confetti ☘️. Across the top, the phrase “HAPPY ST. CATTY’S DAY” appears in large white lettering, centered and easy to read against the dark background. Beneath the cats, the word “Sister” is written in a flowing style in white, placed low and centered under the trio. The flat, vector-like look keeps the shapes simple and the colors solid, with no heavy shading. The cats’ round eyes, curved mouths, and the repeating shamrocks stand out crisply against the deep green backdrop.