A group of spaceships flying over a futuristic city in the sky

(best quality,4k,8k,highres,masterpiece:1.2),ultra-detailed,(realistic,photorealistic,photo-realistic:1.37),spaceship,starships,battleship,advanced propulsion system,stellar navigation system,vibrant colors,sci-fi,high-tech,sleek design,extraterrestrial,galaxy exploration,infinite space,starfield backdrop,futuristic lighting,reflection of stars,engine glow,space combat scene,alien civilizations,medium:concept artists,metallic surfaces,interstellar war.