Using the same process as the skater, I also worked up a more detailed drawing of Robocop (I LOVE Robo!) to honor the new Robocop statue that they are proposing to build in is that work up as well. The process here is basically the same, you just have to take more time when selecting the areas of shadow. Because of takes even longer..but I think that the result looks better here...

I started with a drawing...scanned it, and followed the same process as the skater. The result is a clean drawing ready for coloring. (above)

Then add flat colors (above)
Then use Hue/Saturation to adjust the values (above)

Then add hilights..(above)

...and Voila..there is a new sherrif in town!