Making my castle

For the past week I've been working on a 3D design. My 3D design is going to be a castle. Right now I only have the wall and the main building. I still need to add some color to it and then I need to decorate the main building and then I should be done with it. The whole idea sounds pretty cool since it prints it out 3D. It can also be made out of a lot of stuff but it can't be made out of metal. There is also pre made stuff to that you can select. Then all you have to do is put it together and then you can change the color if you want to as well.