Base: Walking City

For this challenge I made a walking city. The idea is that when humanity is far into the future we will probably have visited and live on many different somewhat inhabitable planets. Why would you make static cities where you use a lot of energy to get all resources to your city when you can make a city that walks to all resources you need?

I tried to create a scene where the city walks to a lake and is ready to refill it's water supply.

I tried to fit in as many detail and stay within the limits to come to a total of 247 pieces of Lego.