Designed with two friendly finned characters facing each other, the scene sets a sweet, buddy-like mood as they lean in toward a shared birthday treat 🎉. A large “Happy Birthday!” message sits across the top in blue lettering, standing out against a light blue background. The character on the left is teal and the one on the right is deep blue, and their rosy cheeks and wide smiles make them look excited to celebrate together. Both wear cone-shaped party hats with patterned bands and fluffy pom-poms, adding a fun party touch without clutter. Between them sits a two-tier cake with purple icing and scattered sprinkles, and one character holds a small fork as if ready for the first bite 🎂. Soft white specks and gentle wavy contours in the background suggest an airy sky or an underwater setting, keeping the focus on the pair and the cake. Green leafy shapes frame the lower corners like a little stage for the celebration. The candle stands upright on top of the cake with a small yellow-orange flame above the purple frosting.