Flat vector illustration of a serene travel poster that highlights the tranquil beauty of Krems, Austria, in spring season, through a minimalistic design. Prioritize simplicity in your composition, utilizing clean lines, vivid bright colors, and minimalist design elements. Choose iconic elements that represent Krems' peaceful ambiance, such as the riverside, historic landmarks, vineyard-covered hills, and integrate them into the poster with a minimalist aesthetic --no words, letter, watermark, text --ar 4:5 --stylize 750
