Here is my Blender Primitives Challenge from the fundamentals course. I'm returning to Blender and indeed computer art after a few years absence and am enjoying my return and learning with CGCookie.
The amount of detail you added to the Robot is fantastic! Keep it up!
Nice, it reminds me of the nuke chest on the old Blizzard game teaser video for StarCraft where they open it up and it's a nuke and a cooler haha.