LEGO Time Travel

Along the lines of the images below, here's an image about traveling through time and being inspired by the world's great inventions. Click to enlarge.

This is inside a book for a model set. You can buy the actual product here.

I wish I'd taken more screengrabs of the whole process, but I didn't. It started as an illustrator sketch. Rough pencil-tool lines quickly thrown down, with the straight lines of the pen tool, which is useful with something as exacting as redrawing a Lego model. I think I used the model as a base to sketch off of, to keep it exact, but I don't see it in the file.