retro futuristic night cityscape. retrowave and synthwave style of night city skyline. retro poster, banner.

1980s 80s abstract background banner bright building city cityscape colours cyber design digital downtown fiction flyer future futuristic glow graphic grid horizon horizontal illustration light mesh midnight neon night poster print retro retrowave science scifi shine shiny silhouette sky skyline skyscraper star style sun sunset synthwave techno technology tower trendy urban vector vintage violet