Addressing questions asked...

Image size: Once I re-render the shuttle from the lower deck - I lost a lot of files in a disk crash - I'll re-create this image at something like 4000px to give a better idea of the detail. I might even add carpet tiles so I can trim off the border (which I don't like)

Engines: in the stories, nobody messes with the engines of a starship as no human could understand their complexities, hence the lack of a visible engine compartment.

Hull: Same as above, the ship is long and sleek but the rest is left to the imagination of the reader. This helps as I haven't yet figured out how to have nice bezier-curved hulls in CC3/Cosmo

CH