cute and playful cartoon sea creatures including a happy whale and friendly octopus in a coral reef setting for kids

cartoon whale ocean sea coral reef underwater cute marine animal octopus friendly illustration character joyful child playful aquatic design nature smile bubble happiness environment scenic adorable artistic creative fun color drawing simplicity minimalism vibrant aquaticlife wildlife fantasy kids family preschool education decor nursery motif digital photography artisticrendering characterdesign drawingstyle ai generated