Create an otherworldly painting of a cityscape where cats roam freely, their fur blending seamlessly with the vibrant colors and textures of the urban landscape.

Picture an ethereal painting of a bustling cityscape during twilight. Among the skyscrapers and picturesque streets, cats are freely wandering. Their coats blend harmoniously with the city's hues and textures, giving an impression as though they're an integral part of the urban scenery. Notice how the vibrant colors of the city lights contrast the deep blue of the nearing nightfall, creating a play of shadows that further cements the blending of the felines into the surroundings. The city exists in an unknown realm; it's a place both strange yet oddly familiar, adding a layer of mystical charm to the scene.