I need a colorful dome that interpr...

I need a colorful dome that interprets the MC Championships Dome from the popularly streamed and played by youtubers game MC Championships. I want the internals to be finished exactly like the picture and other pictures online. I want color everywhere bright and vibrant. I want a good set of stairs leading up to it and a small town at the bottom of the stairs that people can explore before the dome opens the doors to allow players inside. I want concrete to be used a lot. And i want it to be pretty well lit up on the inside and outside.