watercolor portrays a futuristic cityscape with modern building s in flat style

watercolor artistic rendering cityscape urban landscapes architectural wonders modern buildings skyline metropolitan area futuristic city advanced technology flat style design minimalist aesthetic clean lines streamlined shape sleek silhouettes hightech infrastructure glass steel iconic towers spire architecture towering skyscrapers vertical urbanism life transportation flying cars hovercrafts monorails aerial perspectives birds eye view vibrant palette expressive brushstrokes flair colorful backdrop bold composition emphasis elements detailed grid intricate road systems