Stamp

postcard illustration, set of postcards, delicate Japanese watercolor style, soft brush strokes, warm and gentle atmosphere, nostalgic and peaceful mood, four illustrated postcards placed on a wooden table, each postcard with a white border, surrounded by flowers, seashells, and vintage stationery, scenes: a countryside cottage with flowers and a bicycle, a sunny beach with parasol, seashells and clear blue sea, an autumn tree-lined path with fallen leaves and a couple walking, a spring picnic under blooming cherry blossom trees, high detail, harmonious composition, natural light, pastel and vivid colors balanced, hand-painted feeling, illustration for printed postcard, high resolution, clean and beautiful artwork