Thanks for the comments.Even more stunning! I'd never really noticed the "barnacles" on the underside before. Great sculpting.
About how big is this overall?
It's about 2 feet long. I tried to stay as accurate to the studio model as I could. With so few kit parts, scaling it from the photos was a big challenge. I'm sure its several inches off from the original but as close as I could make it. Here's the studio model from an old Cinefex article for comparison.