Here's a cleaned up and colored version from this week's Wednesday Lunch Live Sketch #10 which can be found here on my Youtube channel.
An interesting thing I discovered while working on this was how limited the color palette is on Dirk. Clearly, this is to keep him easier to paint due to budget restrictions at the time. He also has no shots that I can recall where he has any kind of tone values. Still, he does not appear limited and only goes to show how well designed he is.