Wow @ScottishDave, now that's what I'm talking about! Fantastic! You seem to have made improvements to the docking rings (of which I am, off course very curious). I had started modifications to the top (TESB instead of your Star Wars version), but the project has stranded with the purchase and renovations of a house (which will finally have a Lego room). Your thorough modifications on the exterior (most people are working on the interior or engine) inspire me to continue the work on my Falcon :)
I still have to reinstall LDD (although I preferred STUDIO, because it had a more accurate availability of parts), but a quick look at the photos of your mods have provided some eye openers/must-haves. The vents, and engine bay, wow! The ingots on the nose, off course! The treasure chest covers on the mandibles, why didn't I think of those! The "roundness" of the main hull is something for later I guess; this seems to involve a complete rebuild...