Playful hand-drawn poster in unified series style, cream background with bold blue ink illustration, doodle characters walking dogs, drinking coffee, chatting on the street, simple playful composition, bold hand-drawn typography reading 'CITY SLOW DAY', additional text 'SUNDAY WALK', 'START 11AM', 'BRING FRIENDS', imperfect lettering with varied sizes, minimal shapes, scattered sticker-like icons (leaves, arrows, stars), clean but quirky layout, relaxed lifestyle mood.
