anime style,2 girls, older sister with short blonde hair,(hair bow:1.2),red bow, blue eyes, red ribbon on head, younger sister with long hair, cheerful expression, walking in city, (lots of soap bubbles around:1.4), happy mood, casual outfits, visible age difference, detailed city background, buildings, people in background, clear sky, sisterly bond, holding hands, full body view, playful atmosphere, lively street, (blue eyes:1.2), (red ribbon:1.1), (soap bubbles:1.3), (sisterly bond:1.2),masterpiece,