A whimsical fantasy digital book illustration of a black and white cartoon cat wizard lying on its back in a magical tower after using all its energy, paws relaxed and spread sideways, tail loosely curved, head tilted back, eyes closed, calm happy expression and tiny satisfied smile. The cat wears a small wizard robe and a magical hat slightly fallen to the side. Around the exhausted cat are floating spell books, ancient scrolls, empty potion bottles, magical feathers and a glowing wand resting on the floor. Soft magical runes illuminate the room, creating a cozy fantasy atmosphere. The character looks like a funny tired wizard who spent all his mana and now needs a serious rest. Fantasy storybook illustration style, hand-painted digital art, charming cartoon proportions, detailed textures, soft shadows, expressive face, 2D illustration, no photorealism, no 3D. Add Russian text exactly: "Если вы сильно устали" at the top and "Возьмите и сильно отдохните" at the bottom, elegant readable fantasy font, text does not overlap the cat. Add small handwritten signature "Whitezzz" in black italic style, slightly tilted left, bottom right corner. Vertical 9:16 composition, humorous magical character illustration.
