This is by no means the most exciting drawing out there. But it's a great example of how simple shapes and lines can turn into something far more powerful.
The entire city is made of rectangles. Simple lines make up the windows. The stars in the sky are just the letter x. That's it!
The way everything is put together is what makes those simple lines and rectangles turn into a city. They fill the page. That creates far more impact than one building alone. And the dark colors make it clear it's night time.
Next time you want to make a simple drawing more powerful, try filling the page with the simple things you do know how to draw.