Notes:
Perspective madness! ^o^

It's always better if you manage to draw something without straight lines, it adds more dynamics to the picture.

If you wonder why people have so little clothes on, even though Mars should be quite cold, it's because it's the hot period now, with a max temperature close to 30 degrees C... The artificial atmosphere and heating systems help keeping the temperatures at habitable levels...

The winters can be really cold, though, and out in the deserts, in the natural environments, temperatures can drop to below -120 degrees...