Workshop 1! Third in class exercise and Third take home exercies

I use different materials for seperating the walls and the ground and the base. But apparently the color for two material are close, so the purpose to seperate them is hardly achieved. And the whold project is so big, the connection between different level and building are less consideration which make the building is not perfectly connected. And the material I use for the base is too wide, make the base disconnect to the upper floors.