Outside of some animations, does scale really matter? I mostly work in 2D images. Actual comparable sizes don't matter as much as whether everything looks good to the eyeball. When I put a Poser character in a setting with buildings in the background and render the image, a viewer has no idea whether the buildings are accurately sized to scale at the appropriate distance or whether they've been shrunk to a size and placed much closer. The only thing that counts is presenting the illusion that they're at a great distance. It's like Hollywood putting people in a physical miniature city. It was interesting looking at the different comparative scales on your site and seeing how different movie and TV ships compare in size. Take two original ship models and the only hint of their scaling will be based on details either on the models or the textures. The difference between the Star Wars death star and a bowling ball are in the recognizable detailing. Otherwise, they're both spheres.