Street Signs - Color Experiment

One day, I was sipping a cup of drip coffee at a cafe when I looked out my window. I was looking for something to draw or illustrate digitally, but did't know what. I noticed a street sign outside of this window and decided to illustrate it.

I used Din Alternate Bold for the typography. The leftmost sign uses the original colors as seen in real life. I snapped a picture of the sign; it's attached to this shot.