My very first job at Reel FX Creative Studios was to work on the second all CG-animated one-minute GI JOE.com website commercial.
The opening shot of this commercial was of a destroyed Cobra base of operations. I was asked to come up with a design, which I turned in the next day. In that design, I augmented the pencils with graytones from markers.
I went right on to storyboarding the commercial. Several days later, I was shown the opening shot. It was awesome! Creative Director Brandon Oldenburg took my Cobra base drawing, did a color treatment in Photoshop of it, then had it pasted on stock footage of a mountaintop pan shot with smoke billowing out of it!
It was only a 3 second shot, but it was simply amazing to see how things get put together.