a playful image in the form of a detailed line drawing, suitable for coloring.

On a sun-drenched beach, a whimsical black cat with an animatedly flicking tail constructs an elaborate sandcastle, its wide eyes gleaming with delight as grains of sand fly around in a playful whirlwind. The backdrop features serene, rolling waves echoing the joyful atmosphere, while a beaming sun casts a warm glow over the scene, inviting others to join in the lighthearted fun.