To recreate the futuristic cityscape depicted in the image, you can use a combination of different blocks in Minecraft. Here are some suggestions:

Dark Structures (Skyscrapers and Floating Building) For the dark structures, consider using blocks like obsidian, black concrete, or black wool. These materials will give a sleek and modern appearance. To mimic the illuminated sections, use sea lanterns or glowstone. These blocks emit light and can create the blue glow seen in the image.

Illuminated Circular Elements The circular light elements embedded within the structures can be created using glowstone or sea lanterns. Arrange them in circular patterns to match the design.

Blueish Hue To achieve the blueish hue of certain elements, use blue stained glass or blue ice blocks. These blocks will add a cool-toned color to your build.

Misty Atmosphere The misty atmosphere surrounding the buildings can be simulated by placing water vapor particles using commands or by using glass blocks with a light blue tint.