Thanks for those vaderios. I'll 'bookmark' them, and get back to you when it's 'JEDI's' turn, about why I reckon these could be okay as well.
I meant to say about the top 'Executor' shot that I posted there - I really hope Adywan picked up on the good spot by someone (sorry, can't remember who) ages ago, who noted the orange 'glow' from the enginess wrongly overlaps part of it's rear hull there....